[Lymph node staging in cervix carcinomas: the results of high-resolution magnetic resonance tomography (MRT) with a phased-array body coil].
OBJECTIVE
To determine the diagnostic value of high resolution MR imaging with a circularly polarised (c.p.) body phased-array coil for the staging of pelvic lymph nodes in cervical carcinoma.


METHODS
42 patients with histologically proven carcinoma of the cervix were studied on a 1.5 T scanner by using a c.p. body phased-array coil. The imaging protocol included T2-weighted turbo-spin-echo (TSE) and T1-weighted spin-echo sequences pre and post i.v. application of Gd-DTPA; slice thickness was 5-7 mm and pixel size 0.53 mm2. Lymph nodes with a diameter of > or = 8 mm were considered to have metastatic involvement. MR imaging results were compared with histopathologic findings.


RESULTS
MR imaging showed enlarged lymph nodes (> or = 8 mm) in 16 of 18 patients with histologic proof of lymph node metastases (sensitivity 89%). In 22 of 24 cases MR findings were true negative (specificity 92%). Diagnostic accuracy was 91%.


CONCLUSIONS
High-resolution MR imaging with a c.p. body phased-array coil provides high sensitivity, specificity, and diagnostic accuracy for pelvic lymph node staging in cervical carcinoma.
Heuck
A
A
Institut für Radiologische Diagnostik, Klinikum Grosshadern, Ludwig-Maximilians-Universität München.
Scheidler
J
J
Kimmig
R
R
Müller-Lisse
U
U
Steinborn
M
M
Helmberger
T
T
Reiser
M
M
D000328:Adult; D000368:Aged; D002277:Carcinoma / Q000473:pathology*; D002584:Cervix Uteri / Q000473:pathology; D003287:Contrast Media; D005188:False Negative Reactions; D005260:Female; D005682:Gadolinium; D019786:Gadolinium DTPA; D006801:Humans; D008198:Lymph Nodes / Q000473:pathology*; D008207:Lymphatic Metastasis; D008279:Magnetic Resonance Imaging / Q000295:instrumentation* / Q000379:methods; D008875:Middle Aged; D009367:Neoplasm Staging; D009942:Organometallic Compounds; D004369:Pentetic Acid / Q000031:analogs & derivatives; D012189:Retrospective Studies; D012680:Sensitivity and Specificity; D002583:Uterine Cervical Neoplasms / Q000473:pathology*
D003287:Contrast Media; D009942:Organometallic Compounds; D004369:Pentetic Acid; D005682:Gadolinium; D019786:Gadolinium DTPA
Lymphknotenstaging beim Zervixkarzinom: Ergebnisse der hochauflösenden Magnetresonanztomographie (MRT) mit einer Phased-Array-Körperspule.