Technical Program

Paper Detail

Paper:	SA-PM-PS2.10
Session:	Ultrasound Imaging and Analysis
Time:	Saturday, April 8, 13:30 - 14:50
Presentation:	Poster
Title:	Transmission Ultrasound Computed Tomography Using a PE-CMOS Sensor Array: A Preliminary Animal Study
Authors:	Chu Chuan Liu; Virginia Tech
	Shih-Chung B. Lo; ISIS Center, GU
	Matthew Freedman; ISIS Center, GU
	Yue Wang; Virginia Tech
	David Rich; Imperium
	John Kula; Imperium
	Bob Lasser; Imperium
	Marvin Lasser; Imperium
Abstract:	A preliminary study of a transmission ultrasound computed tomography system based on a piezoelectric material coated Complementary Metal-Oxide Semiconductor (PE-CMOS) array is presented. The ultrasound imaging system consists of a 5MHz plane wave transducer, an acoustic compound lens, a PE-CMOS two-dimensional sensor array (model I-100, Imperium Inc., MD), and a micro stepping motor. The array is composed of 128 by 128 elements with 100 microns center-to-center spacing. An ultrasound CT study for a real tissue sample was performed by using the micro stepping motor to control rotation of the test target and 400 ultrasound attenuation images were acquired in a 180 degree rotation (0.45 degree per step). We collected the corresponding transmission views in each receiving line to form a sinogram for all 400 images. The ultrasound CT results were then reconstructed using the filtered back-projection method with a scattering compensation technique.

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