TY - JOUR
T1 - Two-second MR images
T2 - Comparison with spin-echo images in 29 patients
AU - Utz, J. A.
AU - Herfkens, R. J.
AU - Johnson, C. D.
AU - Shimakawa, A.
AU - Pelc, N.
AU - Glover, G.
AU - Spritzer, C. E.
N1 - Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.
PY - 1987
Y1 - 1987
N2 - MR images can be obtained with a 2-sec scan time when an extremely short repetition rate (22 msec), limited flip angle (30°C), and gradient refocused echoes are used. Comparison of 415 such images obtained in 29 patients with routine T1-weighted (TR 500, TE 25) and T2-weighted (TR 2000, TE 80) images showed that images free of respiratory artifacts could be obtained in all patients. Although abdominal organs were well seen with 2-sec scan time, overall evaluation of these organs was better on routine T1-weighted images. Vascular structures, however, were seen as well or better on the 2-sec images in 60% of cases. The images were extremely sensitive to field nonhomogeneity, and metallic artifact was exaggerated in five patients with surgical clips. Two-sec MR images provide a rapid method of localizing abdominal organs for further evaluation. The sensitivity to blood flow may assist in the assessment of vascular patency.
AB - MR images can be obtained with a 2-sec scan time when an extremely short repetition rate (22 msec), limited flip angle (30°C), and gradient refocused echoes are used. Comparison of 415 such images obtained in 29 patients with routine T1-weighted (TR 500, TE 25) and T2-weighted (TR 2000, TE 80) images showed that images free of respiratory artifacts could be obtained in all patients. Although abdominal organs were well seen with 2-sec scan time, overall evaluation of these organs was better on routine T1-weighted images. Vascular structures, however, were seen as well or better on the 2-sec images in 60% of cases. The images were extremely sensitive to field nonhomogeneity, and metallic artifact was exaggerated in five patients with surgical clips. Two-sec MR images provide a rapid method of localizing abdominal organs for further evaluation. The sensitivity to blood flow may assist in the assessment of vascular patency.
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U2 - 10.2214/ajr.148.3.629
DO - 10.2214/ajr.148.3.629
M3 - Article
C2 - 3492897
AN - SCOPUS:0023132161
SN - 0361-803X
VL - 148
SP - 629
EP - 633
JO - American Journal of Roentgenology
JF - American Journal of Roentgenology
IS - 3
ER -