| | |  | | | | Record from Web of Science® | | | | | | |
| Visualizing tissue compliance with MR imaging |
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| Author(s): Plewes DB, Betty I, Urchuk SN, Soutar I |
| Source: JMRI-JOURNAL OF MAGNETIC RESONANCE IMAGING Volume: 5 Issue: 6 Pages: 733-738 Published: NOV-DEC 1995 |
| Times Cited: 76 References: 0 |
| Abstract: We propose a method for visualizing the mechanical properties of tissue based on the use of periodic mechanical compression in conjunction with phase-contrast MR imaging, A specialized mechanical transducer was used to provide programmable compression pulses to the surface of compliant phantoms, These compression pulses were synchronized to a spin-echo sequence with motion-sensitizing gradients to generate phase information reflecting spin displacement throughout the phantom. This sequence was tested with two agarose gel phantoms. The first was a cylinder containing three parallel layers of varying compliance and the second was composed of a semirigid sphere suspended in a uniform layer of decreased elastic modulus, Images showed complex patterns of motion throughout the phantom, which correlated with expected motion behavior of the phantom structures, This indicates that the biomechanical properties of tissues may be elucidated through the use of motion-sensitized MR imaging and suggests that a form of image contrast relating to tissue elasticity may be feasible. |
| Document Type: Article |
| Language: English |
| Reprint Address: Plewes, DB (reprint author), UNIV TORONTO, SUNNYBROOK HLTH SCI CTR, DEPT MED BIOPHYS, 2075 BAYVIEW AVE, TORONTO, ON M4N 3M5 CANADA |
| Publisher: SOC MAGNETIC RESONANCE IMAGING, 1991 NORTHAMPTON ST, EASTON, PA 18042-3189 |
| Subject Category: Radiology, Nuclear Medicine & Medical Imaging |
| IDS Number: TL103 |
| ISSN: 1053-1807 |
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| | | | | | | | | Record from Web of Science® | | | | | | | | | |