PMID- 25607973
OWN - NLM
STAT- MEDLINE
DCOM- 20150915
LR  - 20181023
IS  - 1539-4522 (Electronic)
IS  - 1559-128X (Linking)
VI  - 53
IP  - 34
DP  - 2014 Dec 1
TI  - Impact of device geometry on the imaging characteristics of an intravascular 
      photoacoustic catheter.
PG  - 8131-9
LID - 10.1364/AO.53.008131 [doi]
AB  - A basic requirement for intravascular photoacoustic (IVPA) imaging catheters is 
      that the delivery of light lies within the ultrasonic field of view. Size and 
      manufacturing constraints favor probe designs with offset optical and acoustic 
      beams. This noncollinear dual beam arrangement leads to a curved PA point spread 
      function (PSF). In this work, we characterize the three-dimensional shape of the 
      PSF for IVPA imaging in clear and optically scattering media. We show that the 
      product of the two beam profiles can accurately model the measured peak response 
      in clear and scattering media. We discuss the impact of the PSF shape and its 
      relation to probe construction. We test the imaging capability of the catheter on 
      a phantom and a human artery ex vivo.
FAU - Wu, Min
AU  - Wu M
FAU - Jansen, Krista
AU  - Jansen K
FAU - Springeling, Geert
AU  - Springeling G
FAU - van der Steen, Antonius F W
AU  - van der Steen AF
FAU - van Soest, Gijs
AU  - van Soest G
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - United States
TA  - Appl Opt
JT  - Applied optics
JID - 0247660
SB  - IM
MH  - Cardiac Catheters
MH  - *Computer-Aided Design
MH  - Coronary Vessels/*diagnostic imaging
MH  - Echocardiography/instrumentation/methods
MH  - Elasticity Imaging Techniques/*instrumentation/methods
MH  - Equipment Design
MH  - Equipment Failure Analysis
MH  - Humans
MH  - Phantoms, Imaging
MH  - Photoacoustic Techniques/*instrumentation/methods
MH  - Reproducibility of Results
MH  - Sensitivity and Specificity
MH  - Ultrasonography, Interventional/*instrumentation
MH  - *Vascular Access Devices
EDAT- 2015/01/22 06:00
MHDA- 2015/09/16 06:00
CRDT- 2015/01/22 06:00
PHST- 2015/01/22 06:00 [entrez]
PHST- 2015/01/22 06:00 [pubmed]
PHST- 2015/09/16 06:00 [medline]
AID - 304944 [pii]
AID - 10.1364/AO.53.008131 [doi]
PST - ppublish
SO  - Appl Opt. 2014 Dec 1;53(34):8131-9. doi: 10.1364/AO.53.008131.