Journals / Tanısal ve Girişimsel Radyoloji (Yeni Adı: Dİagnostic & Intervent. Radiol) / 2004 / Cilt: 10 - Sayı: 3

The role of three dimensional MR myelography in lumbar discogenic disease

Lomber disk hastalığında üç boyutlu MR myelografinin yeri

Pages
189–195
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

The presence of false-negative and false-positive examinations necessitates caution in interpreting 3D-MRM images. 3D MRM technique may be useful in selected cases such as patients with multilevel disc abnormalities or lumbar spinal stenosis where it allows a rapid and easy appreciation of the level most likely to account for the pathology.

📌 3 Key Takeaways

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Objective & Hypothesis:PURPOSE: To evaluate the role of the three dimensional (3D) MR myelography (MRM) in the diagnosis of the lumbar discogenic disease compared with conventional MR imaging.
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Key Findings & Data:Conventional MR imaging and coronal 3D MRM were performed on a 1.5 T MR system.
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Conclusion & Impact:The presence of false-negative and false-positive examinations necessitates caution in interpreting 3D-MRM images. 3D MRM technique may be useful in selected cases such as patients with multilevel disc abnormalities or lumbar spinal stenosis where it allows a rapid and easy appreciation of the level most likely to account for the pathology.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Lumbar omurga · Manyetik rezonans görüntüleme · Omurilik

Abstract

PURPOSE: To evaluate the role of the three dimensional (3D) MR myelography (MRM) in the diagnosis of the lumbar discogenic disease compared with conventional MR imaging. MATERIALS AND METHODS: Fifty consecutive patients with clinical symptoms of lumbar disc herniation were enrolled for the study. Conventional MR imaging and coronal 3D MRM were performed on a 1.5 T MR system. At each disc space level, the presence and the location of disc herniation and nerve root compression were evaluated. Note was also made if MRM had additional contribution to the determination of most significant level in the cases of multilevel disc disease and lumbar spinal stenosis. RESULTS: Disc herniation was found in 60 disc space levels on conventional MR imaging and in 54 disc space levels on 3D-MRM imaging. As regards to disc herniation, the sensitivity, specificity, and accuracy of 3D-MRM was 90%, 100%, and 96%, respectively. Nerve root compression was seen in 91 levels on conventional MR images, as opposed to 98 on 3D-MRM. Regarding nerve root compression, the sensitivity, specificity, and accuracy of 3D-MRM was 100%, 97%, and 98%, respectively. In all of 13 patients with multilevel disc disease and lumbar spinal stenosis, 3D-MRM had additional contribution. CONCLUSION: Scan time of 3D-MRM is short. It can be easily added to routine lumbar MR imaging. It may be a valuable modality in the diagnosis of the lumbar discogenic disease. The presence of false-negative and false-positive examinations necessitates caution in interpreting 3D-MRM images. 3D MRM technique may be useful in selected cases such as patients with multilevel disc abnormalities or lumbar spinal stenosis where it allows a rapid and easy appreciation of the level most likely to account for the pathology.

Özet

AMAÇ Lomber disk hastalığı tanısında, konvansiyonel MRG ile karşılaştırarak üç boyutlu MR myelografinin (3B-MRM) yerini değerlendirmek. GEREÇ VE YÖNTEM Lomber disk herniasyonu semptomları olan ardışık 50 hasta çalışmaya dahil edildi. 1.5 T MR sistemde konvansiyonel MRG ve koronal 3B-MRM uygulandı. Konvansiyonel MRG ve 3B-MRM ile her bir disk düzeyinde disk herniasyonu ve sinir kökü basısı varlığı ve lokalizasyonu değerlendirildi. Çok seviyede disk herniasyonu ve dar lomber spinal kanal saptanan hastalarda en önemli disk düzeyini belirlemede 3B-MRM’nin tanıya ek katkısı not alındı. BULGULAR Konvansiyonel MRG ile 60, 3B-MRM ile 54 seviyede disk herniasyonu saptandı. 3B-MRM’nin disk herniasyonu saptamadaki duyarlığı %90, özgüllüğü %100 ve doğruluğu %96 idi. Konvansiyonel MRG ile 91, 3B-MRM ile 98 sinir kökü basısı saptandı. 3BMRM’nin sinir kökü basısını saptamada duyarlılığı %100, özgüllüğü %97 ve doğruluğu %98 idi. Çok seviyede disk herniasyonu ve dar lomber spinal kanal saptanan 13 hastanın hepsinde 3B-MRM ek katkı sağladı. SONUÇ 3B-MRM’nin çekim süresi kısadır. Kolayca rutin MRG’ye eklenebilir. Lomber disk hastalığı tanısında değerli bir yöntem olabilir. Yalancı-negatif ve yalancı-pozitif sonuçların varlığı 3B-MRM görüntülerini yorumlarken dikkatli olmamız gerektiğini göstermektedir. Bununla birlikte, 3B-MRM özellikle çok seviyede disk herniasyonu veya dar lomber spinal kanal saptadığımız olgularda semptomlara sebep olan en önemli disk düzeyini hızla ve kolayca belirlememizi sağlayarak yararlı olabilir.

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Cite This Article

ERDEM, L. O., ERDEM, C. Z., GÜNDOĞDU, S., ÇAĞAVİ, F., KALAYCI, M., AÇIKGÖZ, B. (2004). The role of three dimensional MR myelography in lumbar discogenic disease. Tanısal ve Girişimsel Radyoloji (Yeni Adı: Dİagnostic & Intervent. Radiol), Cilt: 10 - Sayı: 3, 189–195. https://ajindex.com/articles/364239

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