Ultrasound Evaluation of Normal and Abnormal Fetuses: Comparison of Conventional, Tissue Harmonic, and Pulse-Inversion Harmonic Imaging Techniques
نویسندگان
چکیده
منابع مشابه
Ultrasound Evaluation of Normal and Abnormal Fetuses: Comparison of Conventional, Tissue Harmonic, and Pulse-Inversion Harmonic Imaging Techniques
OBJECTIVE To determine the usefulness of tissue harmonic imaging (THI) and pulse-inversion harmonic imaging (PIHI) in the evaluation of normal and abnormal fetuses. MATERIALS AND METHODS Forty-one pregnant women who bore a total of 31 normal and ten abnormal fetuses underwent conventional ultrasonography (CUS), and then THI and PIHI. US images of six organ systems, namely the brain, spine, he...
متن کاملComparison of contrast-enhanced fundamental imaging, second-harmonic imaging, and pulse-inversion harmonic imaging.
RATIONALE AND OBJECTIVES To investigate the feasibility of recent contrast-specific ultrasound techniques in depicting vascular flow and the effects of changing the output power of the transducer and insonation mode on contrast enhancement, the authors performed an experimental study with a flow phantom. METHODS While changing the mechanical index and the sound insonation mode (continuous and...
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OBJECTIVE To compare the use of conventional, real-time compound, and pulse-inversion harmonic imaging in the evaluation of breast nodules. MATERIALS AND METHODS Fifty-two breast nodules were included in this study, conducted between May and December 2000, in which conventional, real-time compound, and pulse-inversion harmonic images were obtained in the same plane. Three radiologists, each b...
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چکیده ندارد.
15 صفحه اولTissue harmonic synthetic aperture ultrasound imaging.
Synthetic aperture sequential beamforming (SASB) and tissue harmonic imaging (THI) are combined to improve the image quality of medical ultrasound imaging. The technique is evaluated in a comparative study against dynamic receive focusing (DRF). The objective is to investigate if SASB combined with THI improves the image quality compared to DRF-THI. The major benefit of SASB is a reduced bandwi...
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ژورنال
عنوان ژورنال: Korean Journal of Radiology
سال: 2003
ISSN: 1229-6929
DOI: 10.3348/kjr.2003.4.3.184