PMID- 10071642
OWN - NLM
STAT- MEDLINE
DCOM- 19990322
LR  - 20061115
IS  - 1438-9029 (Print)
IS  - 1438-9010 (Linking)
VI  - 170
IP  - 1
DP  - 1999 Jan
TI  - [Low-field MRI of the knee joint: results of a prospective, arthroscopically 
      controlled study].
PG  - 35-40
AB  - PURPOSE: To define the diagnostic accuracy of an open low-field MR unit (Magnetom 
      Open, Siemens, Erlangen) in traumatic knee lesions. MATERIALS AND METHODS: The 
      MRIs of 150 patients were prospectively evaluated by two independent readers with 
      different experience levels. The study protocol included a proton-density 
      weighted SE-sequence in the sagittal, a T2.-weighted Flash-2D-sequence in the 
      coronal, and a 3D-acquisition (DESS) in the axial plane. 75 patients were treated 
      either conservatively or operatively. RESULTS: Based on arthroscopy as the gold 
      standard, the sensitivities, specificities, and diagnostic accuracies for lesions 
      of the medial and lateral meniscus, the anterior cruciate ligament (ACL), the 
      hyaline cartilage, and the posterior cruciate ligament (PCL) were 92%, 92% and 
      92%, 83%, 93% and 92%, 95%, 96% and 96%, 74%, 93% and 85%, and 100%, 
      respectively, for reader 1. The values for reader 2 were 81%, 74% and 77% (medial 
      meniscus), 61%, 86% and 80% (lateral meniscus), 79%, 95% and 91% (ACL), 48%, 91% 
      and 73% (hyaline cartilage), and 100% each (PCL), respectively. There were no 
      statistical differences between the two readers (Fisher's Exact Test, 
      95%-confidence interval). CONCLUSIONS: Using a time-consuming examination 
      protocol, the diagnostic accuracies of the open low-field MR unit are well 
      comparable to those obtained with mid- or high-field units. Although not 
      statistically significant in this study, the experience level of the examiner 
      seems to be of considerable clinical relevance.
FAU - Kreitner, K F
AU  - Kreitner KF
AD  - Klinik und Poliklinik fur Radiologie, Johannes Gutenberg-Universitat Mainz. 
      kreitner@radiologie.klinik.uni-mainz.de
FAU - Hansen, M
AU  - Hansen M
FAU - Schadmand-Fischer, S
AU  - Schadmand-Fischer S
FAU - Krummenauer, F
AU  - Krummenauer F
FAU - Runkel, M
AU  - Runkel M
LA  - ger
PT  - Comparative Study
PT  - English Abstract
PT  - Journal Article
TT  - Niederfeld-MR-Tomographie des Kniegelenkes: Ergebnisse einer prospektiven, 
      arthroskopisch kontrollierten Studie.
PL  - Germany
TA  - Rofo
JT  - RoFo : Fortschritte auf dem Gebiete der Rontgenstrahlen und der Nuklearmedizin
JID - 7507497
SB  - IM
MH  - Adult
MH  - *Arthroscopy
MH  - *Endoscopy
MH  - Female
MH  - Humans
MH  - Knee Injuries/*diagnosis/surgery
MH  - Knee Joint/pathology
MH  - Magnetic Resonance Imaging/*instrumentation
MH  - Male
MH  - Observer Variation
MH  - Sensitivity and Specificity
EDAT- 1999/03/11 00:00
MHDA- 1999/03/11 00:01
CRDT- 1999/03/11 00:00
PHST- 1999/03/11 00:00 [pubmed]
PHST- 1999/03/11 00:01 [medline]
PHST- 1999/03/11 00:00 [entrez]
AID - 10.1055/s-2007-1011004 [doi]
PST - ppublish
SO  - Rofo. 1999 Jan;170(1):35-40. doi: 10.1055/s-2007-1011004.