Gd-DOTA-enhanced MR imaging and color Doppler US of renal allograft necrosis.

Details

Serval ID
serval:BIB_00FD1B7A5A04
Type
Article: article from journal or magazin.
Collection
Publications
Title
Gd-DOTA-enhanced MR imaging and color Doppler US of renal allograft necrosis.
Journal
Radiographics
Author(s)
Hélénon O., Attlan E., Legendre C., Hanna S., Denys A., Souissi M., Kreis H., Moreau J.F.
ISSN
0271-5333[print], 0271-5333[linking]
Publication state
Published
Issued date
1992
Volume
12
Number
1
Pages
21-33
Language
english
Notes
Publication types: Journal Article ; Research Support, Non-U.S. Gov't
Publication Status: ppublish
Abstract
In 21 recipients of renal transplants suspected of allograft necrosis, the authors correlated the results of imaging to pathologic and histologic data in order to describe the magnetic resonance (MR) imaging and color Doppler ultrasonographic (US) characteristics of infarction. All patients underwent MR imaging performed with and without gadolinium tetraazacyclododecanetetraacetic acid (DOTA) and color Doppler US. Nonenhanced T1-weighted images showed no obvious changes, whereas nonenhanced T2-weighted images demonstrated a slight increase in signal intensity in areas of ischemic necrosis and low or heterogeneous signal intensity in areas of hemorrhagic necrosis. Gd-DOTA-enhanced MR images showed no contrast material uptake in infarcted areas. Color Doppler US characteristics of infarction included absence of Doppler signal and alteration of the cortical echogenic structure, particularly in cases of ischemic necrosis. Color Doppler US allows measurement of vascular resistance and assessment of intrarenal vasculature and the renal pedicle. Gd-DOTA-enhanced MR imaging is useful in confirming the diagnosis of infarction and provides an accurate evaluation of the extent of the infarct.
Keywords
Adult, Aged, Color, Contrast Media, Doppler Effect, Female, Gadolinium/diagnostic use, Graft Rejection, Heterocyclic Compounds/diagnostic use, Humans, Image Enhancement, Infarction/diagnosis, Infarction/pathology, Kidney/blood supply, Kidney/pathology, Kidney Cortex Necrosis/diagnosis, Kidney Cortex Necrosis/pathology, Kidney Transplantation/pathology, Kidney Transplantation/ultrasonography, Magnetic Resonance Imaging/methods, Male, Middle Aged, Necrosis, Organometallic Compounds/diagnostic use, Thrombosis/diagnosis, Thrombosis/pathology
Pubmed
Web of science
Create date
17/03/2010 10:59
Last modification date
20/08/2019 12:23
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