Exhibit (d)(5)

EXECUTION COPY

December 16, 2014

Joseph Burnett

[at the address in the Schedule]

Re: Retention Agreement

Dear Joe:

This is your RETENTION AGREEMENT (this “Agreement”) with Clearwater Merger Sub, Inc., a Delaware corporation (the “Company”). It sets forth the terms of your employment with the Company.

1. Employment.

Some of the terms of your employment are in the attached schedule (your “Schedule”), which is part of this Agreement.

This Agreement is being entered into in connection with and as a condition to the Agreement and Plan of Merger, dated December 16, 2014, among Volcano Corporation, a Delaware corporation (“Volcano”), Philips Holding USA Inc., a Delaware corporation and the Company (such Agreement and Plan of Merger, the “Merger Agreement”). The Agreement shall become effective, and your employment under this Agreement will (a) begin on the date the merger provided for in the Merger Agreement becomes effective (the “Start Date”) and (b) end at the close of business on the earlier of (1) the end of the Compensation Period stated in the Schedule or (2) the effective date of early termination of your employment. Once effective, this Agreement supersedes and terminates any earlier agreements or arrangements, written or oral, with respect to the subject matter of this Agreement, including your current entitlements under the Volcano Officer Change in Control Severance Benefit Plan and any other agreements or arrangements you have with Volcano relating to the subject matter herein.

However, if the Merger Agreement or your employment with Volcano terminates for any reason before the merger occurs, all of the provisions of this Agreement will terminate and there will be no liability of any kind under this Agreement. You agree to remain employed by Volcano until the consummation of the merger contemplated in the Merger Agreement. References in this Agreement to “your employment” are to your employment under this Agreement.

You will be employed in the position stated in your Schedule to this Agreement and your primary work site will be at the Location stated in your Schedule. The Company may change your position from time to time, including by transferring you to an affiliate of the Company. You will have the authority, responsibilities and reporting relationships that correspond to and are commensurate with your position, including any particular authority, responsibilities and reporting relationships that the Company’s Board of Directors (the “Board”) or any officer of the Company to whom you report may reasonably assign to you from time to time.

If you remain employed with the Company through the end of the Compensation Period, then you will continue as an “at will” employee.

You agree to execute and comply with the Company’s General Business Principles and the Employee Ethics and Intellectual Property Agreement which are attached hereto.

2. Your Compensation and Benefits.

1. Salary. During the Compensation Period, you will receive an annual base salary (your “Salary”) and you will be eligible for a merit increase beginning in 2016. Your Salary is stated in your Schedule. Your Salary will be paid in accordance with the Company’s normal payroll practices.

2. Annual Bonus. You will be eligible to receive an annual cash bonus (your “Annual Bonus”) for each fiscal year of the Company ending during your employment. The amount of your Annual Bonus will be determined by the Company in accordance with your Schedule.

3. Initial Equity Award. You will be awarded performance stock units under the Philips Annual Long Term Incentive Plan (the “LTIP” and such award, your “Initial Equity Award”). The value of performance stock units comprising your Initial Equity Award and the vesting schedule for your Initial Equity Award is stated in the Schedule. Your Initial Equity Award will be subject to the terms of the LTIP and to the terms of your award agreement under it.

4. April 2015 Equity Award. You will also be eligible to receive annual long-term incentive awards under the LTIP and will be awarded performance stock units under the LTIP in April 2015 provided that the merger has occurred by that time (the “April 2015 Equity Award”). The value of performance stock units comprising your April 2015 Equity Award and the vesting schedule for your April 2015 Equity Award is stated in the Schedule. Your April 2015 Equity Award will be subject to the terms of the LTIP and to the terms of your award agreement under it.

5. Cash Sign-on Bonus. You will be eligible to receive a special cash sign-on bonus (your “Cash Sign-on Bonus”) equal to the amount set forth in the Schedule.

6. Cash Retention Bonus. You will be eligible to receive a special cash retention bonus (your “Cash Retention Bonus”) equal to the amount set forth in the Schedule. You shall not receive any portion of your Cash Retention Bonus if you cease to be an employee of the Company prior to the applicable payment date for any reason.

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7. Other Benefits. During your employment, you will be entitled to participate in such employee benefit plans and insurance programs offered by the Company to similarly situated employees in accordance with the eligibility requirements for participation in those programs. The Company may, in its sole discretion, provide for your continued participation in Volcano employee benefit plans and insurance programs or, if it so elects, transition you to employee benefit plans and insurance programs sponsored by the Company in connection with integration of employee benefit programs after the Start Date.

3. Severance Benefits.

If your employment is terminated by the Company without Cause or by you for Good Reason before the end of the Compensation Period stated in the Schedule, then, subject to your execution and delivery within 30 days of the date of your termination of the Company’s then standard severance agreement applicable to similarly situated employees which will contain reasonable and customary provisions, including, without limitation, general releases, and non-competition, non-solicitation, non-disparagement, confidentiality and conflict of interest provisions substantially similar to those set forth in the General Business Principles and Employee Ethics and Intellectual Property Agreement] attached hereto (modified to reflect the terms of the Agreement), the Company will provide you with the Severance Benefits described in your Schedule.

The Severance Benefits shall not be paid if the Company terminates your employment for Cause, the end of the Compensation Period is reached, or you cease to be an employee of the Company as a result of your resignation for any reason or as a result of your death or physical or mental disability. For purposes of this Agreement, you shall be deemed disabled, if by reason of a physical or mental illness or medical condition you have been unable to render the services required of you under this Agreement for a period of 180 days in any 12-month period.

4. Proprietary Information

1. Definition. “Proprietary Information” means confidential or proprietary information, knowledge or data concerning (i) the Company or its affiliates, businesses, strategies, operations, financial affairs, organizational matters, personnel matters, budgets, business plans, marketing plans, studies, policies, procedures, products, ideas, processes, software systems, trade secrets and technical know-how, (ii) any other matter relating to the Company or its affiliates and (iii) any matter relating to clients of the Company or its affiliates or other third parties having relationships with the Company or its affiliates. Proprietary Information includes (i) information regarding any aspect of your tenure as an employee of the Company or the termination of your employment, (ii) the names, addresses, and phone numbers and other information concerning clients and prospective clients of the Company or its affiliates, information and materials concerning the personal affairs of employees of the Company or its affiliates. In addition, Proprietary Information may include information furnished to you orally or in writing (whatever the form or storage medium) or gathered by inspection, in each case before or after the date of this Agreement. However, Proprietary Information does not include information (i) that was or becomes generally available to the public, other than as a result of a disclosure by you, directly or indirectly, or (ii) that you can establish was independently developed by you without reference to any Proprietary Information.

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2. Use and Disclosure. You will obtain or create Proprietary Information in the course of your involvement in the Company’s or its affiliate’s activities and may already have Proprietary Information. You agree that the Proprietary Information is the exclusive property of the Company, and that, during your employment, you will use and disclose Proprietary Information only for the Company’s benefit and in accordance with any restrictions placed on its use or disclosure by the Company. After your employment, you will not use or disclose any Proprietary Information. In addition, nothing in this Agreement will operate to weaken or waive any rights that the Company may have under statutory or common law, or any other agreement, to the protection of trade secrets, confidential business information and other confidential information.

3. Limitations. Nothing in this Agreement prohibits you from providing truthful testimony or information concerning the Company to governmental, regulatory or self-regulatory authorities or otherwise as required by law. Also, the parties (and their respective employees, representatives and agents) may disclose to any and all persons, without any limitation of any kind, the tax treatment and tax structure of this Agreement and all materials of any kind (including opinions and other tax analysis) that are provided to either party related to such tax treatment and structure.

5. Ongoing Restrictions on Your Activities

1. General Effect. This Section 5 applies during your employment with the Company under this Agreement and for a 12-month period after the end of your employment with the Company under this Agreement. This Section uses the following defined terms:

“Competitive Enterprise” means any business enterprise that either (i) develops, manufactures or distributes any product, process or service that has the same or similar purpose or use as a product, process or service researched, discovered, developed, manufactured, imported, marketed, sold, offered for sale or used by the Company, including but not limited to imaging systems using intravascular ultrasound, optical coherence tomography or spectroscopy, image guided therapy systems or devices or imaging systems using ultrasound generated within a body or (ii) holds a 5% or greater equity, voting or profit participation interest in any enterprise that engages in such a competitive activity. A business enterprise engaged in Peripheral Vascular Therapeutics shall not be a Competitive Enterprise for purposes of this Section 5.

“Client” means any client, supplier, distributor or prospective client, suppler or distributor of the Company or its affiliates to whom you provided services, or for whom you transacted business, or whose identity became known to you in connection with your relationship with or employment by the Company or its affiliates.

“Solicit” means any direct or indirect communication of any kind, regardless of who initiates it, that in any way invites, advises, encourages or requests any person to take or refrain from taking any action. A general employment advertisement by an entity of which you are a part is excluded from the definition of Solicit.

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2. Your Importance to the Company and the Effect of this Section 5. You acknowledge that:

(a) In the course of your involvement in the Company’s activities, you will have access to Proprietary Information and the Company’s client base and will benefit from the goodwill associated with the Company. On the other hand, in view of your access to Proprietary Information and your importance to the Company, if you compete with the Company or its affiliates for some time after your employment, the Company will likely suffer significant harm. In return for the benefits you will receive from the Company and to induce the Company to enter into this Agreement, and in light of the potential harm you could cause the Company, you agree to the provisions of this Section 5. The Company would not have entered into this Agreement or the Merger Agreement if you did not agree to this Section 5.

(b) In light of Section 5.2(a), if you breach any provision of this Section 5, the loss to the Company would be material but the amount of loss would be uncertain and not readily ascertainable.

(c) This Section 5 limits your ability to earn a livelihood in a Competitive Enterprise and your relationships with Clients. You acknowledge, however, that complying with this Section 5 will not result in severe economic hardship for you or your family.

3. Non-Competition. During your employment with the Company and for a 12-month period after the end of your employment with the Company for any reason, you will not directly or indirectly:

(a) hold a 5% or greater equity, voting or profit participation interest in a Competitive Enterprise except for ownership interests that represent a passive investment, where you do not in any way either directly or indirectly manage or exercise control over such entity, guarantee any of its financial obligations or otherwise take any part in its business, other than exercising rights as a shareholder; or

(b) act as a director, officer, employee, partner, consultant, agent, advisor, lender or guarantor of a Competitive Enterprise:

(i) that is substantially related to any activity that you were engaged in,

(ii) that is substantially related to any activity for which you had direct or indirect managerial or supervisory responsibility, or

(iii) that calls for the application of specialized knowledge or skills substantially related to those used by you in your activities;

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in each case, for the Company or its affiliates at any time during the year before the end of your employment (or, if earlier, the year before the date of determination).

Notwithstanding the foregoing, you shall not be precluded from participating in the Permitted Activities set forth in the Schedule, to the extent such activities do not interfere with your duties hereunder.

4. Non-Solicitation of Clients. During your employment with the Company and for a 12-month period after the end of your employment with the Company for any reason, you will not:

(a) Solicit any Client to transact business with a Competitive Enterprise or to reduce or refrain from doing any business with the Company and its affiliates (excluding any business that is not a material activity of the Company or its affiliates),

(b) transact business with any Client that would cause you to be a Competitive Enterprise or that would cause any Client to reduce or refrain from doing any business with the Company or its affiliates, or

(c) interfere with or intentionally damage any relationship between the Company and its affiliates and a Client.

5. Non-Solicitation of Employees. During your employment with the Company and for a 12-month period after the end of your employment with the Company for any reason, you will not attempt to Solicit anyone who is then an employee of the Company or its affiliates (or who was an employee of the Company or any of its affiliates within the prior three (3) months) to resign from the Company and its affiliates or to apply for or accept employment with any Competitive Enterprise, except that you may Solicit your administrative assistant.

6. Injunctive Relief. You acknowledge that the Company may be caused irreparable injury in the event of a breach of this Section 5 and that money damages may not be an adequate remedy, and further agree that the Company shall be entitled to seek injunctive relief (in addition to its other remedies at law) to have the provisions of this Section 5 enforced (without the requirement to post a bond). It is hereby acknowledged that the provisions of this Section 5 are for the benefit of the Company and that the Company may enforce the provisions of this Section 5 and only the Company can waive the rights hereunder with respect to its confidential information, Clients and employees.

7. Notice to New Employers. Before you accept employment with any other person or entity while any of Sections 5.3, 5.4 or 5.5 is in effect, you will provide the prospective employer with written notice of the provisions of this Section 5 and will deliver a copy of the notice to the Company.

6. No Public Statements or Disparagement

You agree, for yourself and others acting on your behalf, that you (and they) will not intentionally disparage publicly, or make negative public statements about the Company or any of its incumbent or former officers, directors, agents, consultants, employees, successors and assigns. Nothing in this provision shall prohibit you from testifying truthfully in response to a subpoena or other lawfully issued legal process.

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7. Disputes

Subject to Section 5.6, this Section 7 applies to any controversy or claim between you and the Company or its affiliates arising out of or relating to or concerning this Agreement or any aspect of your employment with the Company, its affiliates or Volcano or the termination of that employment (together, an “Employment Matter”).

Subject to the provisions of Section 5.6 and this Section 7, any Employment Matter will be finally settled by arbitration in the County of San Diego administered by the American Arbitration Association under its Commercial Arbitration Rules then in effect. However, the rules will be modified in the following ways: (i) the decision must not be a compromise but must be the adoption of the submission by one of the parties, (ii) each arbitrator will agree to treat as confidential evidence and other information presented, (iii) a decision must be rendered within 15 business days of the parties’ closing statements or submission of post-hearing briefs and (iv) the arbitration will be conducted before a panel of three arbitrators, one selected by you within 10 days of the commencement of arbitration, one selected by the Company in the same period and the third selected jointly by these arbitrators (or, if they are unable to agree on an arbitrator within 20 days of the commencement of arbitration, the third arbitrator will be appointed by the American Arbitration Association).

You and the Company agree that there will be no punitive damages payable as a result of any Employment Matter and agree not to request punitive damages. The arbitrator may award attorney’s fees and costs of the arbitration to the prevailing party.

You or the Company may bring an action or special proceeding in a state or federal court of competent jurisdiction sitting in the County of San Diego to enforce any arbitration award under this Section 7.

You and the Company irrevocably submit to the exclusive jurisdiction of any state or federal court located in the County of San Diego over any Employment Matter that is not otherwise arbitrated or resolved according to Section 7. Each of us hereby waives, and agrees not to assert, as a defense that either of us, as appropriate, is not subject thereto or that the venue thereof may not be appropriate. We each hereby agree that mailing of process or other papers in connection with any such action or proceeding in any manner as may be permitted by law shall be valid and sufficient service thereof.

To the extent permitted by law, you and the Company waive any and all rights to a jury trial with respect to any Employment Matter.

This Agreement will be governed by and construed in accordance with the law of the State of California.

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8. General Provisions.

The Company may withhold from any payment due hereunder any taxes that are required to be withheld under any law, rule or regulation.

The parties agree that this Agreement is intended to comply with the requirements of Section 409A of the Internal Revenue Code of 1986, as amended (the “Code”) and the regulations promulgated thereunder (“Section 409A”) or an exemption from Section 409A. In the event that after execution of this Agreement either party makes a determination inconsistent with the preceding sentence, it shall promptly notify the other party of the basis for its determination. The parties agree to renegotiate in good faith the terms of this Agreement if you determine that this Agreement as structured would have adverse tax consequences to you. Notwithstanding anything in this Agreement to the contrary, if you are a “specified employee” as described in Section 409A and the Treasury Regulations thereunder, and any amount to which you would otherwise be entitled during the first six months following your separation of service that constitutes nonqualified deferred compensation within the meaning of Section 409A and that is therefore not exempt from Section 409A as involuntary separation pay or a short-term deferral, will be accumulated and paid (without interest) on the first business day of the seventh month following the date of your separation from service. For purposes of this Agreement, each amount to be paid or benefit to be provided hereunder shall be construed as a separate identified payment for purposes of Section 409A.

This Agreement is personal to you and without the prior written consent of the Company shall not be assignable by you otherwise than by will or the laws of descent and distribution. The Company may assign this Agreement to any of its affiliates at any time, provided that the Company shall remain jointly liable for the obligations of any assignee hereunder. This Agreement shall inure to the benefit of and be enforceable by your legal representatives. This Agreement shall inure to the benefit of and be binding upon the Company and its successors and assigns.

This Agreement may not be amended or modified otherwise than by a written agreement executed by the parties hereto or their respective successors and legal representatives. The invalidity or unenforceability of any provision of this Agreement shall not affect the validity or enforceability of any other provision of this Agreement. It is the parties’ intention that this Agreement not be construed more strictly with regard to you or the Company. Upon becoming effective on the Start Date, this Agreement shall supersede any other employment or severance agreement or arrangements or similar rights you may have with the Company, Volcano or any of their affiliates (and you shall not be eligible for severance benefits under any other plan, program or policy of the Company).

Certain capitalized terms used herein have the meanings set forth in the Schedule hereto.

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9. Acknowledgement.

YOU ACKNOWLEDGE THAT YOU HAVE HAD THE OPPORTUNITY TO CONSULT LEGAL COUNSEL CONCERNING THIS AGREEMENT, THAT YOU HAVE READ AND UNDERSTAND THIS AGREEMENT, THAT YOU ARE FULLY AWARE OF THIS AGREEMENT’S LEGAL EFFECT, AND THAT YOU HAVE ENTERED INTO THIS AGREEMENT FREELY BASED ON YOUR OWN JUDGMENT AND NOT ON ANY REPRESENTATION OR PROMISES OTHER THAN THOSE CONTAINED IN THIS AGREEMENT.

Clearwater Merger Sub, Inc.
By:	/s/ Joseph E. Innamorati
Name:		Joseph E. Innamorati
Title:		Vice President

Accepted and Agreed

as of the date hereof

/s/ Joseph Burnett

Joseph Burnett

[Signature Page to J. Burnett Retention Agreement]

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J. BURNETT RETENTION AGREEMENT SCHEDULE

(This Schedule constitutes part of the Retention Agreement)

Name and address for notices	Joseph Burnett [Address on file with the Company]
Location	San Diego, California
Position	You shall initially be employed as Business Leader IGT Devices.
Compensation Period	Your Compensation Period will end on the second anniversary of your Start Date.
Salary	Your Salary will be $335,000, annually.
Annual Bonus	You will be eligible to receive an Annual Bonus in accordance with the terms of the Philips Annual Incentive Plan and the target level for your Annual Bonus will be at least 40% of your Salary. The actual amount of the Annual Bonus you shall be entitled to receive shall be based upon achievement of the goals set by the Company in accordance with the Philips Annual Incentive Plan.
Initial Equity Award	You will be awarded restricted stock units with an aggregate grant date value of EUR 200,000 on the first grant date possible under the LTIP after your Start Date. Your Initial Equity Award will vest 50% on the second anniversary of the grant date, and 50% on the third anniversary of the grant date.
April 2015 Equity Award	You will be awarded performance stock units with an aggregate grant date value of EUR 130,000 on the day 2015 long-term incentive awards are granted to similarly situated employees. Your April 2015 Equity Award will be subject to 3 year cliff vesting, subject to achievement of applicable performance metrics.
Cash Sign-on Bonus	You will receive a Cash Sign-on Bonus of $75,000 which will be paid to you in a cash lump sum within 30 days of the Start Date.
Cash Retention Bonus	You will receive a Cash Retention Bonus of $350,000 if you are employed by the Company upon the second anniversary of your Start Date. Such payment will be made within 30 days of such anniversary date. If your employment terminates for any reason prior to the second anniversary of the Start Date then you will not be paid any portion of the Cash Retention Bonus.

Definition of Cause	“Cause” means your: (i) willful refusal to perform the duties and responsibilities reasonably assigned to you pursuant to Section 1 of the Agreement, (ii) engagement in illegal conduct or in gross misconduct, in either case, that causes material financial or reputational harm to the Company or its affiliates, (iii) commission or conviction of, or plea of guilty or nolo contendere to, a felony, (iv) material breach of the Company’s written code of conduct and business ethics or (v) willful attempt to obstruct or failure to cooperate with any investigation authorized by the Board or any governmental or self-regulatory entity. With respect to subclauses (iv) and (v), the Company agrees to give you notice and an opportunity to timely cure any breach which is susceptible to cure (as reasonably determined by the Company).
Definition of Good Reason	“Good Reason” means the existence of one of the following conditions without your express written consent, provided that (i) you have provided written notice to the Company as to the existence of such condition within thirty (30) days after its initial existence, (ii) the Company fails to provide a reasonable cure to such condition within thirty (30) days after its receipt of such written notice (the “Cure Period”) and (iii) your resignation from employment with the Company is effective not later than 30 days after expiration of the Cure Period where the Company has failed to reasonably cure the conditions: (A) a material diminution in your Salary. (B) the transfer of your primary work site from the Location to a new location that increases your one-way commute to work by more than 50 miles, (C) a material diminution in your authority, duties or responsibilities or (D) a material diminution in the authority, duties, or responsibilities of the supervisor to whom you are required to report.
Severance Benefits	If you are terminated by the Company without Cause or if you terminate your employment with Good Reason, in each case, prior to the end of your Compensation Period, you shall receive the following benefits: (1)    The Company will pay you $480,000 in a cash lump sum within 30 days of your termination date.

(2)    If you timely elect to continue your Company-provided group health insurance coverage pursuant to the federal COBRA law, the Company will reimburse you for the cost of such COBRA premiums, at the same level as you maintain as of the date of termination, through the end of the COBRA period (18 months), or until such time as you qualify for health insurance benefits through a new employer, whichever occurs first. The reimbursement shall be for 100% of your COBRA premiums, as well as for your eligible dependents’ COBRA premiums, and the coverage to be provided on this basis shall be health and dental coverage. You understand and agree that if you are terminated for Cause or resign for any reason, you will not receive the aforementioned payments and benefits. After the end of the Compensation Period, you will be eligible for severance benefits under the Philips Executive Severance Policy.

Permitted Activities

Service on Board of Directors of SensorCath, Inc.