Results 21 to 30 of about 112,312 (306)

Processing methods for photoacoustic Doppler flowmetry with a clinical ultrasound scanner [PDF]

Journal of Biomedical Optics, 2018
Photoacoustic flowmetry (PAF) based on time-domain cross correlation of photoacoustic signals is a promising technique for deep tissue measurement of blood flow velocity. Signal processing has previously been developed for single element transducers. Here, the processing methods for acoustic resolution PAF using a clinical ultrasound transducer array ...
Bücking, TM, van den Berg, PJ, Balabani, S, Steenbergen, W, Beard, PC, Brunker, J   +5 more
openaire   +4 more sources

Ultrasound lmaging-vulnerable plaque diagnostics: Automatic carotid plaque segmentation based on deep learning

Journal of Radiation Research and Applied Sciences, 2023
Purpose: The purpose of this article is to develop a novel algorithm based on a kind of deep convolutional neural network for the automatic carotid plaque segmentation and stroke risk assessment from the carotid artery plaque using Doppler ultrasound ...
Xiao-xiao Chen, Zi-xiang Kong, Shu-fang Wei, Fei Liang, Ting Feng, Shan-shan Wang, Jian-song Gao   +6 more
doaj   +1 more source

EFSUMB Recommendations and Guidelines for Gastrointestinal Ultrasound - Part 1: Examination Techniques and Normal Findings (Long version). [PDF]

, 2016
▼ In October 2014 the European Federation of Societies for Ultrasound in Medicine and Biology formed a Gastrointestinal Ultrasound (GIUS) task force group to promote the use of GIUS in a clinical setting.
Calabrese, E., Dietrich, C. F., Dirks, K., Gilja, O. H., Hausken, T., Higginson, A., Hollerweger, A., Maaser, C., Maconi, G., Nuernberg, D., Nylund, K., Pallotta, Nadia, Ripolles, T., Romanini, L., Saftoiu, A., Serra, C., Sporea, I.   +16 more
core   +3 more sources

Transthoracic Vector Flow Imaging in Pediatric Patients with Valvular Stenosis – A Proof of Concept Study

Ultrasound International Open, 2021
Purpose Continuous wave Doppler ultrasound is routinely used to detect cardiac valve stenoses. Vector flow imaging (VFI) is an angle-independent real-time ultrasound method that can quantify flow complexity.
Tin-Quoc Nguyen, Thor Bechsgaard, Michael Rahbek Schmidt, Klaus Juul, Ramin Moshavegh, Lars Lönn, Michael Bachmann Nielsen, Jørgen Arendt Jensen, Kristoffer Lindskov Hansen   +8 more
doaj   +1 more source

Diagnosis of venous incompetence inerectile dysfunction [PDF]

, 1990
In 26 of 214 patients with erectile dysfunction and proved venous incompetence by cavernosography, an additional bidirectional Doppler ultrasound was performed also to demonstrate venous outflow disturbances. All except one leakage in the superficial and
Bähren, Wolfgang, Gall, Helmut, Holzki, G., Scherb, Wolfgang, Sparwaser, C. H., Stief, Christian Georg   +5 more
core   +1 more source

Discrimination between pleural thickening and minimal pleural effusion using color Doppler chest ultrasonography

Egyptian Journal of Chest Disease and Tuberculosis, 2013
Background: The discrimination of pleural thickening from minimal pleural effusion may be difficult as both lesions appear as anechoic on grayscale ultrasound, hence, free of “echoes” does not confirm the presence of pleural fluid.
Ali A. Hasan, Hoda A. Makhlouf, Alaa R.M. Mohamed   +2 more
doaj   +1 more source

Venous occlusion plethysmography vs. Doppler ultrasound in the assessment of leg blood flow kinetics during different intensities of calf exercise [PDF]

, 2017
PurposeIt has recently been shown that venous occlusion plethysmography (VOP) can successfully assess the rate of increase in leg blood flow (LBF) (LBF kinetics) responses during calf exercise, but there is lack of data supporting its validity ...
Egana, Mikel, Gildea, Norita, Green, Simon, Murphy, Elanie, Rocha, Joel   +4 more
core   +2 more sources

Multicenter Prospective Study of Color Doppler Ultrasound for Breast Masses: Utility of Our Color Doppler Method [PDF]

Ultrasound in Medicine & Biology, 2019
The use of color Doppler ultrasound (CD) for distinguishing between benign and malignant breast lesions remains controversial. This study (JABTS BC-04 study) was aimed at confirming the usefulness of our CD diagnostic criteria. We evaluated ultrasound images of 1408 solid breast masses from 16 institutions in Japan (malignant: 839, benign: 569 ...
Takanori Watanabe, Setsuko Kaoku, Takuhiro Yamaguchi, Ayumi Izumori, Sachiyo Konno, Toshitaka Okuno, Hiroko Tsunoda, Kanako Ban, Koichi Hirokaga, Terumasa Sawada, Toshikazu Ito, Shuichi Nakatani, Hidemitsu Yasuda, Masahiko Tsuruoka, Ei Ueno, Eriko Tohno, Takeshi Umemoto, Takako Shirakawa   +17 more
openaire   +2 more sources

Systematic review and meta-analysis of the diagnostic accuracy of ultrasonography for deep vein thrombosis [PDF]

, 2005
Background Ultrasound (US) has largely replaced contrast venography as the definitive diagnostic test for deep vein thrombosis (DVT). We aimed to derive a definitive estimate of the diagnostic accuracy of US for clinically suspected DVT and identify ...
A Cogo, A Cogo, A Elias, A Elias, A Gongolo, A Markel, A Miselli, AF Aburahma, AG Aitken, AJ Comerota, AJ Comerota, AJ Sutton, Alex Sutton, AT Irvine, AW Lensing, B Kassai, B van Ramshorst, B Wolf, BD Lewis, BG Birdwell, BG Birdwell, BN Raghavendra, BS Hwang, C Kearon, C Savy-Stortz, D Becker, D Cavaye, D Gaitini, DA Kristo, DC Mitchell, DH O'Leary, DL Rollins, DP Flanigan, DR Anderson, E Bernardi, E Kalodiki, Edwin van Beek, EK Yucel, F Dany, F Pasquariello, FC Sampson, Fiona Sampson, FJ Song, G Guazzaloca, GJ Zhang, GM Baxter, GM Baxter, GP Shields, GP Size, GR Simons, GV Belcaro, H Bounameaux, H Heijboer, H Heijboer, H Rosier, HJ Aronen, HO Leven, I Baumgartner, J De Laveaucoupet, J Howe, J Yao, J Zamora, JC De Valois, JE George, JE George, JF Chance, JG Lijmer, JJ Cranley, JJ Cronan, JJ Deeks, JM Schindler, JP Carpenter, JP Fletcher, JP Laissy, JPJ Archie, JS Ginsberg, K Forbes, K Ouriel, K Walsh, LA Killewich, LW Tick, M Atri, M Dauzat, M Grobety, M Hay, M Mantoni, M Monreal, M Sluzewski, MA Amin, MA Mattos, MCG Holmes, ME McCandless, MJ Bradley, MK Eskandari, MK Zhou, N Labropoulos, N Miller, NH Rosner, OM Pedersen, P De Faucal, P Vogel, PJ Bendick, PL Robertson, PL Robertson, PR Biondetti, PS Wells, PS Wells, PS Wells, PS Wells, PS Wells, PT Appelman, PT Kennedy, R Lindqvist, R Mani, R Poti, R Puls, R Quintavalla, RA Bucek, RA Kraaijenhagen, RB Patterson, SC Rose, SG Thompson, SJ Theodorou, SM Bates, SM Schellong, SM Stevens, Steve Goodacre, Steve Thomas, SW Heim, TE Gudmundsen, TL Turnbull, W Habscheid, W Wysokinski, WD Foley   +133 more
core   +5 more sources

Renal Power Doppler Ultrasonographic Evaluation of Children with Acute Pyelonephritis [PDF]

Acta Medica Iranica, 2011
Urinary tract infections are common in children. The available gold standard method for diagnosis, Tc-99m dimercaptosuccinic acid scan is expensive and exposes patients to considerable amount of radiation.
Ahmad Shajari, Reza Nafisi-Moghadam, Mahrooz Malek, Agha Smaili, Mahmud Fallah, Ali Pahlusi   +5 more
doaj   +1 more source