[MRT of the hypophysis: spin echo 2D or gradient echo 3D?].
Diagnostic efficacy of T1-weighted 3D gradient-echo and 2D spin-echo pulse sequences in the detection of adenomas were evaluated in a ROC study of 50 patients. Sensitivity, specificity and accuracy did not differ significantly, but in direct comparison gradient-echo received a clear lower rating due to susceptibility artifacts, lower signal-to-noise ratio, and inferior periglandular contrasts. Additional lesions could not be reliably detected in gradient-echo imaging at 1 mm slice thickness. A substitution of 2D spin-echo imaging by gradient-echo sequences cannot be recommended at present.
Reuther
G
G
Institut für Klinische Radiologie, Westfälische Wilhelms-Universität, Münster.
Bongartz
G
G
Fahrendorf
G
G
Peters
P E
PE
D000236:Adenoma / Q000175:diagnosis* / Q000453:epidemiology; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000379:methods*; D010911:Pituitary Neoplasms / Q000175:diagnosis* / Q000453:epidemiology; D015175:Prolactinoma / Q000175:diagnosis / Q000453:epidemiology; D011446:Prospective Studies; D012372:ROC Curve
MRT der Hypophyse: Spinecho 2D oder Gradientenecho 3D?