EXHIBIT 4.3

                          REGISTRATION RIGHTS AGREEMENT


     This Registration  Rights Agreement (this  "Agreement") is made and entered
into as of June 21, 2007 by and among Vasomedical,  Inc., a Delaware corporation
(the "Company"),  and each of Kerns Manufacturing  Corp., a New York corporation
("Kerns"),  and  Living  Data  Technology  Corporation,  a New York  corporation
("Living Data").

     This  Agreement is made pursuant to (1) the Securities  Purchase  Agreement
dated as of the date hereof (the "Securities Purchase Agreement") by and between
the Company and Kerns and (2) the  Distribution  Agreement  dated as of the date
hereof  (the  "Distribution  Agreement")  by and  between the Company and Living
Data,  pursuant  to which each of Kerns and  Living  Data is  acquiring  certain
equity securities of the Company, and this Agreement shall become effective only
upon a Closing pursuant to the Securities Purchase Agreement.

     The Company and the Purchasers hereby agree as follows:

     1.  Definitions.  Capitalized  terms used and not otherwise  defined herein
that are defined in the Securities Agreement or the Distribution Agreement shall
have the meanings given such terms in the Securities  Purchase  Agreement or the
Distribution  Agreement.  As used in this  Agreement,  the following terms shall
have the following meanings:

     "Holder"  or  "Holders"  means the holder or holders  (including  Kerns and
Living Data),  as the case may be from time to time, of  Registrable  Securities
(including any permitted assignee).

     "Registrable  Securities" means the Kerns Shares,  the Warrant Shares,  the
Living Data Shares and any shares of the Common  Stock  issued or issuable  upon
any stock split, dividend or other distribution, recapitalization, anti-dilution
adjustment or similar event with respect to the foregoing or in connection  with
any provision in the Securities Purchase Agreement,  the Distribution  Agreement
or the Warrant.

     2. Grant of Rights.  If the Company  intends to file with the SEC under the
Securities  Act at any time after  July 1, 2008 a  registration  statement  (the
"Registration Statement") with respect to shares of the Common Stock (other than
on the SEC's current Form S-8 or Form S-4 (or any  replacement  therefor)),  the
Company will offer each of the Holders the  opportunity to sell the  Registrable
Securities  pursuant to the Registration  Statement.  Each Holder shall have ten
(10) days from  receipt of the  Company's  notice to accept or reject the offer,
specifying as to the number of shares of the Registrable  Securities as to which
the Holder requests  registration.  Such registration shall be at no cost to the
Holders  other than for the fees of  counsel,  if any,  each  Holder may wish to
retain in connection  with such process or any applicable  transfer taxes or the
underwriting  discounts or  commissions  applicable  to the shares of the Common
Stock sold by each Holder pursuant thereto.  In connection with the Registration
Statement,  each Holder  shall,  within five (5) Business Days of receipt of any
notice  from the  Company  requesting  the same,  furnish  to the  Company  such
information as the Company may reasonably  request with respect to such Holder's
plan of distribution, such Holder's ownership of securities of the Company other
than  those  acquired  pursuant  to the  Securities  Purchase  Agreement  or the
Distribution  Agreement and such other  information as may be required to effect
such registration,  including information that is subsequently  requested by the
Staff of the SEC. The Holders may exercise these "piggyback" registration rights


only twice.  Notwithstanding  the  foregoing,  in the event that (i) the Holders
seek to offer for sale at market on a delayed or  continuous  basis  Registrable
Securities and (ii) the number of Registrable Securities sought to be include in
the any such Registration  Statement by the Holders exceeds the number of shares
that may be sold on a delayed or continuous basis pursuant to Rule 415 under the
Securities  Act (or any successor  rule),  as determined by the Company based on
the advice of counsel or as set forth in a comment  letter from the staff of the
SEC, then the number of Registrable  Securities in such  Registration  Statement
shall be  reduced to the  maximum  number  that may be sold by the  Holders as a
"secondary'  offering  at market on a delayed or  continuous  basis.  As to such
Registrable  Securities  not include in a  Registration  Statement,  the Holders
shall be entitled to subsequently  exercise  "piggyback"  registration rights as
provided above in this Section 2, even if the Holders had  previously  exercised
"piggyback"  registration rights on two or more occasions. The Company shall not
be obligated to register the Holder's  shares of the  Registrable  Securities if
counsel to the Company  shall deliver an opinion to the Holder that the proposed
sale or other  transfer  of the Kerns  Shares,  the  Living  Data  Shares or the
Warrant Shares,  whichever is applicable,  is exempt from applicable federal and
state  securities  registration  requirements and would result in all purchasers
and transferees from such Holder obtaining  securities which are not "restricted
securities" as defined in SEC Rule 144(a)(3) under the Securities Act.

     3. Maintenance of  Registration.  The Company shall be required to maintain
the  effectiveness of the Registration  Statement  registering the shares of the
Registrable  Securities  until the  earlier of (a) the public sale of all of the
shares  of the  Common  Stock  registered  thereunder  for the  Holder,  (b) the
expiration  of one  year  from  the date  the  Registration  Statement  has been
declared  effective by the SEC, or (c) receipt of an opinion from counsel to the
Company  that the proposed  sale or other  transfer by the Holder is exempt from
applicable  federal and state  securities  registration  requirements  and would
result in all purchasers and transferees  from the Holder  obtaining  securities
which are not  "restricted  securities" as defined in Rule  144(a)(3)  under the
Securities  Act. If the Holder's right to sell is delayed as provided in Section
4 or Section 6 hereof,  then the period of delay shall be added to the  one-year
period in clause (b) of this  Section 3. The Company  shall comply with Rule 172
under the Securities Act.

     4. Underwriter's Hold on Selling.  If, during any time in which the Company
is required to keep effective the Registration  Statement,  it is the opinion of
the Company's managing underwriter that, in any underwritten offer of securities
then  contemplated by the Company,  the continued  offering of the shares of the
Common Stock of the Holder,  when added to the other securities being registered
by the Company  (plus those of any other selling  stockholder),  will exceed the
maximum  amount  of the  Company's  securities  which the  managing  underwriter
believes  can be marketed  (a) at a price  reasonably  related to their  current
market value, or (b) without materially  adversely affecting the offering by the
Company,  then the Holder  agrees to cease its  resales for a period of up to 90
days from the effective date of this new registration  statement as requested by
the managing underwriter.

                                       2

     5.  Compliance with Regulation M. Each Holder shall, at any time it engages
in a distribution  of the shares of the Common Stock  registered for the Holder,
comply  with all  applicable  requirements  of  Regulation  M (or any  successor
provisions  then in force)  promulgated  under the Exchange Act and (a) will not
engage in any  stabilization  activity in connection  with the securities of the
Company  in  contravention  of the rules and  regulations  of the SEC,  (b) will
distribute  the shares of the Common Stock  registered  for the Holder solely in
the manner described in the Registration  Statement and (c) will not bid for, or
purchase,  any  securities of the Company,  or induce any person to purchase any
securities of the Company, other than as permitted under the Exchange Act.

     6.  Non-Current  Prospectus.  If the  Company  shall at any time during the
period it is obligated to keep the Registration  Statement  effective,  based on
the advice of its counsel,  conclude that the prospectus  constituting Part I of
the  Registration  Statement no longer  complies  with  Section  10(a)(3) of the
Securities  Act, the Company  shall  promptly  notify the Holder to cease use of
such prospectus and shall promptly take actions either to amend the Registration
Statement or to supplement  the  prospectus  so that the Holder will  thereafter
have a prospectus  complying  with  Section  10(a)(3) of the  Securities  Act to
resell the Holder's shares of the Shares.  The Holder shall, upon receipt of the
foregoing  notice from the Company,  forthwith  discontinue  disposition  of the
shares  of  the  Shares  offered  by the  Holder  pursuant  to the  Registration
Statement  until  receipt of copies of the  supplemented  or amended  prospectus
complying with Section 10(a)(3) of the Securities Act.

     7. Change in  Distribution.  At least five (5)  Business  Days prior to any
disposition  of the  Holder's  shares  (other than  pursuant to an  underwritten
offering)  by  the  Holder,  if  the  Holder  intends  to  change  its  plan  of
distribution from that described in the Registration Statement,  the Holder will
orally advise the Company (and  promptly  confirm such advice in writing) of the
change in the plan of distribution,  with such other  information as the Company
may reasonably request in order to supplement the prospectus constituting Part I
of the  Registration  Statement in accordance  with the rules and regulations of
the SEC.  Promptly after receiving such advice,  the Company will, if necessary,
prepare a supplement to the prospectus  based upon such advice and file the same
with the SEC pursuant to Rule 424(b) under the Securities Act.

     8.  Underwritten  Offering.  If  the  Registration  Statement  involves  an
underwritten public offering, then (a) the Company shall enter into, and perform
its obligations under, an underwriting  agreement,  in usual and customary form,
with the managing  underwriter  and (b) each Holder  shall also enter into,  and
perform its obligations under, the underwriting agreement.

     9. Indemnification

     (a)  Indemnification  by the Company.  The Company shall indemnify and hold
harmless,  to the full extent permitted by law, the Holders and their respective
directors and officers (if applicable) and each person, if any, who controls the
Holders or the  underwriter  within the meaning of Section 15 of the  Securities
Act or Section  20(a) of the Exchange Act against any losses,  claims,  damages,
liabilities  or  expenses   (including  all  expenses   reasonably  incurred  in
investigating,  preparing for, or defending  against,  any claim  whatsoever) to
which any of them may become subject under the Securities  Act, the Exchange Act
or otherwise,  arising from the  Registration  Statement,  except insofar as the
same are caused by, or contained in, any information  with respect to any Holder
furnished in writing to the Company by such Holder expressly for use therein.

                                       3


     (b)  Indemnification  By the Holder.  Each Holder shall  indemnify and hold
harmless,  to the full extent permitted by law, the Company and any underwriter,
their  respective  officers and directors and each person,  if any, who controls
the  Company  or  the  underwriter  within  the  meaning  of  Section  15 of the
Securities Act or Section 20(a) of the Exchange Act, against all losses, claims,
damages,  liabilities or expenses (including all expenses reasonably incurred in
investigating, preparing for or defending against any claim whatsoever) to which
they may become subject under the Securities Act, the Exchange Act or otherwise,
arising from information  furnished with respect to the Holder in writing to the
Company by the Holder expressly for the use therein.

     (c) Conduct of  Indemnification  Proceedings.  If any  proceeding  shall be
brought or asserted  against  any Person  entitled to  indemnity  hereunder  (an
"Indemnified  Party"),  such Indemnified  Party shall promptly notify the Person
from whom  indemnity is sought (the  "Indemnifying  Party") in writing,  and the
Indemnifying Party shall have the right to assume the defense thereof, including
the employment of counsel  reasonably  satisfactory to the Indemnified Party and
the  payment  of all fees and  expenses  incurred  in  connection  with  defense
thereof; provided, that the failure of any Indemnified Party to give such notice
shall not relieve  the  Indemnifying  Party of its  obligations  or  liabilities
pursuant to this  Agreement,  except (and only) to the extent that such  failure
shall have materially prejudiced the Indemnifying Party.

     An Indemnified Party shall have the right to employ separate counsel in any
such  proceeding  and to participate  in the defense  thereof,  but the fees and
expenses of such counsel  shall be at the expense of such  Indemnified  Party or
Parties  unless:  (i) the  Indemnifying  Party has agreed in writing to pay such
fees and expenses;  (ii) the  Indemnifying  Party shall have failed  promptly to
assume  the  defense  of  such  proceeding  and  to  employ  counsel  reasonably
satisfactory  to such  Indemnified  Party in any such  proceeding;  or (iii) the
named parties to any such Proceeding  (including any impleaded  parties) include
both such  Indemnified  Party and the  Indemnifying  Party, and such Indemnified
Party shall have been  advised by counsel  that a conflict of interest is likely
to exist if the same counsel were to represent  such  Indemnified  Party and the
Indemnifying  Party (in which  case,  if such  Indemnified  Party  notifies  the
Indemnifying  Party in writing that it elects to employ separate  counsel at the
expense of the Indemnifying  Party,  the  Indemnifying  Party shall not have the
right to assume the defense  thereof and the reasonable fees and expenses of one
separate counsel for all Indemnified Parties in any matters related on a factual
basis shall be at the expense of the Indemnifying Party). The Indemnifying Party
shall not be liable for any settlement of any such Proceeding  affected  without
its written  consent,  which  consent  shall not be  unreasonably  withheld.  No
Indemnifying  Party shall,  without the prior written consent of the Indemnified
Party,  effect any settlement of any pending  proceeding in respect of which any
Indemnified Party is a party,  unless such settlement  includes an unconditional
release of such  Indemnified  Party from all  liability  on claims  that are the
subject of such proceeding.

                                       4

     All  reasonable  fees and  expenses  of the  Indemnified  Party  (including
reasonable  fees  and  expenses  to  the  extent  incurred  in  connection  with
investigating   or  preparing  to  defend  such   proceeding  in  a  manner  not
inconsistent  with this Section 9) shall be paid to the  Indemnified  Party,  as
incurred,  within  ten (10)  Business  Days of  written  notice  thereof  to the
Indemnifying  Party;  provided,   that  the  Indemnified  Party  shall  promptly
reimburse  the  Indemnifying  Party for that  portion of such fees and  expenses
applicable to such actions for which such  Indemnified  Party is not entitled to
indemnification  hereunder,  determined  based upon the  relative  faults of the
parties.

     (d) Contribution. If for any reason the indemnification provided for in the
preceding  subsections  (a) or (b) of this  Section  9 is  held  by a  court  of
competent jurisdiction to be unavailable to an Indemnified Party with respect to
any loss,  claim,  damage,  liability or expense  referred to therein,  then the
Indemnifying  Party, in lieu of indemnifying  such Indemnified Party thereunder,
shall  contribute  to the amount paid or payable by the  Indemnified  Party as a
result  of such  loss,  claim,  damage or  liability  in such  proportion  as is
appropriate  to  reflect  not  only  the  relative   benefits  received  by  the
Indemnified Party and the Indemnifying Party, but also the relative fault of the
Indemnified  Party and the  Indemnifying  Party,  as well as any other  relevant
equitable considerations.

     10. Company Covenant.  The Company covenants that it shall file the reports
required to be filed by it under the Securities Act and the Exchange Act and the
rules and  regulations  adopted by the SEC thereunder so long as any Holder owns
any Registrable Securities, but in no event longer than two (2) years; provided,
however,  the Company may delay any such filing but only pursuant to Rule 12b-25
under the  Exchange  Act and shall take such  further  reasonable  action as any
Holder may reasonably request (including, without limitation, promptly obtaining
any required legal opinions from Company counsel necessary to effect the sale of
Registrable  Securities  under Rule 144 and paying the related fees and expenses
of such  counsel),  all to the extent  required from time to time to enable such
Holder to sell Registrable  Securities without registration under the Securities
Act within the limitation of the  exemptions  provided by (a) Rule 144 under the
Securities  Act,  as such  Rule may be  amended  from  time to time,  or (b) any
similar rule or regulation hereafter adopted by the SEC. Upon the request of any
Holder of  Registrable  Securities,  the Company  will  deliver to such Holder a
written statement as to whether it has complied with such requirements.

     11. Entire  Agreement.  The  Transaction  Documents  constitute  the entire
agreement of the parties with respect to the  transactions  contemplated  hereby
and supersede all prior  agreements  and  understandings  with respect  thereto,
whether written or oral.

     12. No Waiver;  Modifications in Writing. No failure or delay by a party in
exercising  any  right,  power or remedy  hereunder  shall  operate  as a waiver
thereof,  nor shall any single or partial  exercise of any such right,  power or
remedy  preclude  any other or further  exercise  thereof or the exercise of any
other right, power or remedy. Except as otherwise expressly provided herein with
respect to any right of  indemnification,  the remedies  provided for herein are
cumulative  and are not  exclusive of any remedies  that may be available to any
party at law or in equity or otherwise. No waiver of or consent to any departure
by a party from any provision of this Agreement shall be effective unless signed

                                       5

in  writing  by  the  party  entitled  to the  benefit  thereof.  No  amendment,
modification  or  termination  of any  provision  of  this  Agreement  shall  be
effective unless signed in writing by all parties. Any amendment,  supplement or
modification  of or to any  provision  of  this  Agreement,  any  waiver  of any
provision of this Agreement,  and any consent to any departure from the terms of
any  provision  of this  Agreement,  shall  be  effective  only in the  specific
instance and for the specific purpose for which made or given.

     13. Notices.  All notices,  demands and other  communications  provided for
hereunder  shall be in writing,  shall be given by (a)  registered  or certified
mail,  return receipt  requested,  (b) telecopy with electronic  confirmation of
such  transmission,  (c) national  courier service or (d) personal  delivery and
shall be deemed  delivered  (a) three  Business Days after deposit with the U.S.
Postal Service, (b) the date given by electronic or e-mail delivery,  (c) on the
business  day next  following  deposit  with a  courier  service  for  overnight
delivery  with  written  confirmation  of such  delivery  or (d)  upon  personal
delivery, addressed to the parties, as follows:


                  If to the Company, to:

                           Vasomedical, Inc.
                           180 Linden Avenue
                           Westbury, NY 11590
                           Attention:  Chief Financial Officer
                           Telecopy:  (516) 997-2299
                           E-Mail: TEfstathiou@vasomedical.com

                     with a copy to (which shall not constitute notice):

                           David H. Lieberman, Esq.
                           Beckman, Lieberman & Barandes, LLP
                           Suite 1313, 116 John Street
                           New York, NY 10038
                           Telecopy:  (212) 608-9687
                           E-Mail:  DLieberman@blbllp.com

                      If to Kerns or Living Data, to:
                           Kerns Manufacturing Corp.
                           37-14 29th Street
                           Long Island City, NY 11101
                           Attention: Chief Financial Officer
                           Telecopy: (718) 786-0534
                           E-Mail:  kernsmfg@optonline.net

                      with a copy to (which shall not constitute notice):

                      Robert W. Berend, Esq.
                      Wachtel & Masyr, LLP
                      110 East 59th Street
                      New York NY 10022
                      Telecopy: (212)909-9455
                      E-Mail:  berend@wmllp.com

                                       6

or to such other address as any party shall designate in writing in compliance
with the provisions of this Section 13.

     14. Execution in Counterparts;  Facsimile Signatures. This Agreement may be
executed  in any  number of  counterparts  and by  different  parties  hereto on
separate  counterparts,  each  of  which  counterparts,  when  so  executed  and
delivered,  shall be deemed  to be an  original  and all of which  counterparts,
taken together,  shall  constitute but one and the same  Agreement.  The parties
agree that they may rely on the facsimile signature of any party with respect to
this Agreement or any waiver, amendment, supplement or consent relating thereto,
with the same effect as if such signature was an original.

     15. Binding Effect;  Assignment.  The rights and obligations of the parties
under this  Agreement may not be assigned or otherwise  transferred to any other
person or entity, without the prior written consent of the other parties hereto.
Except as expressly  provided in this  Agreement,  this  Agreement  shall not be
construed  so as to confer any right or benefit  upon any person or entity other
than the parties to this Agreement and their respective successors and permitted
assigns.  This Agreement shall be binding upon and shall inure to the benefit of
the Company,  Kerns, Living Data and their respective  permitted  successors and
assigns.

     16.  Governing  Law. This  Agreement  shall be deemed to be a contract made
under and shall be governed by and  construed  in  accordance  with the internal
laws of the  State  of New York  without  giving  effect  to the  principles  of
conflict of laws.

     17. Consent to  Jurisdiction  and Service of Process.  Any suit,  action or
proceeding  arising  out of or relating to this  Agreement  or the  transactions
contemplated  hereby may be  instituted  in any  federal  court  situated in the
Southern or Eastern Districts of New York or any state court of the State of New
York,  in each case,  in the Borough of  Manhattan,  City of New York, or Nassau
County in the State of New York, and each party agrees not to assert,  by way of
motion, as a defense or otherwise,  in any such suit, action or proceeding,  any
claim that it is not subject  personally to the jurisdiction of such court, that
the suit,  action or proceeding is brought in an  inconvenient  forum,  that the
venue of the suit,  action or proceeding  is improper or that this  Agreement or
the subject  matter  hereof may not be enforced in or by such court.  Each party
further  irrevocably submits to the jurisdiction of such court in any such suit,
action or proceeding. Any and all service of process and any other notice in any
such suit,  action or proceeding  shall be effective  against any party if given
personally or by registered or certified mail,  return receipt requested if sent
to such party at the  address for such party set forth  herein,  or by any other
means of mail that requires a signed receipt,  postage fully prepaid,  mailed to
such  party as herein  provided.  Nothing  herein  contained  shall be deemed to
affect the right of any party to serve process in any manner permitted by law or
to commence legal  proceedings or otherwise  proceed  against any other party in
any other jurisdiction.

     18. Waiver of Jury Trial. The parties hereto hereby  irrevocably  waive all
right to a trial by jury in any action,  proceeding or counterclaim  arising out
of or relating to this Agreement or the transactions contemplated hereby.

                                       7

     19. Severability of Provisions.  Any provision hereof that is prohibited or
unenforceable in any jurisdiction shall, as to such jurisdiction, be ineffective
to the extent of such prohibition or unenforceability  without  invalidating the
remaining provisions hereof, and any such prohibition or unenforceability in any
jurisdiction shall not invalidate or render  unenforceable such provision in any
other jurisdiction. To the extent permitted by law, the parties hereto waive any
provision of law that renders any such provision  prohibited or unenforceable in
any respect.

     20.  Headings.  The  Article,  Section  and  subsection  headings  used  or
contained in this Agreement are for  convenience of reference only and shall not
affect the construction of this Agreement.

     IN WITNESS  WHEREOF,  the parties have  executed this  Registration  Rights
Agreement as of the date first above written.


                               VASOMEDICAL, INC.


                               By:/s/ John C. K. Hui
                                  -------------------------------
                                   Name: John C. K. Hui
                                   Title: Chief Executive Officer


                               KERNS MANUFACTURING CORP.


                               By:/s/ Simon Srybnik
                                  ------------------------------
                                   Name: Simon Srybnik
                                   Title: Chairman of the Board


                               LIVING DATA TECHNOLOGY
                                 CORPORATION


                               By: /s/ Simon Srybnik
                                   ------------------------------
                                   Name: Simon Srybnik
                                   Title: Chairman of the Board