Journal
ULTRASOUND IN MEDICINE AND BIOLOGY
Volume 30, Issue 10, Pages 1365-1371Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.ultrasmedbio.2004.08.012
Keywords
two-dimensional array; volumetric ultrasound imaging; transcranial sonography
Funding
- NHLBI NIH HHS [HL 64962, HL 72840] Funding Source: Medline
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We tested the feasibility of real-time, 3-D ultrasound (US) imaging in the brain. The 3-D scanner uses a matrix phased-array transducer of 512 transmit channels and 256 receive channels operating at 2.5 MHz with a 15-mm diameter footprint. The real-time system scans a 65degrees pyramid, producing up to 30 volumetric scans per second, and features up to five image planes as well as 3-D rendering, 3-D pulsed-wave and color Doppler. In a human subject, the real-time 3-D scans produced simultaneous transcranial horizontal (axial), coronal and saggital image planes and real-time volume-rendered images of the gross anatomy of the brain. In a transcranial sheep model, we obtained real-time 3-D color flow Doppler scans and perfusion images using bolus injection of contrast agents into the internal carotid artery. (C) 2004 World Federation for Ultrasound in Medicine Biology.
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