Assessment of extradural degenerative disease with Gd-DTPA-enhanced MR imaging: correlation with surgical and pathologic findings.

Ross, Jeffrey S.; Modic, M T; Masaryk, T J; Carter, J; Marcus, Randall E.; Bohlman, Henry H.

doi:10.2214/ajr.154.1.2104701

Cited by 27 publications

(13 citation statements)

References 3 publications

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“…Some reports describe the morphologic changes of LDH associated with conservative treatment and the predictive value of the resorption of LDH by using contrast -enhanced MRI 15,16) . However, it is not routine to use con- The study also revealed that lower limb pain would gradually improve even in the patients who exhibited no resorption.…”

Section: Discussionmentioning

confidence: 99%

“…Contrast -enhanced MRI following plain, non -enhanced MRI is very useful to diagnose an epidural tumor 12−14) , while it is not routinely used for LDH except when it is necessary for discrimination of an epidural tumor. Some reports note the morphologic changes of LDH in conservative treatment and the predictive value of the resorption of LDH by using contrast -enhanced MRI 15,16) . However, there are few reports that note the predictive value of plain MRI 5,7) .…”

Section: Introductionmentioning

confidence: 99%

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The Predictive Factors for the Resorption of a Lumbar Disc Herniation on Plain Mri

Iwabuchi

Murakami

Ara

et al. 2010

Fukushima J. Med. Sci.

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: Previous studies have noted the morphologic changes of lumbar disc herniation (LDH) in conservative treatment and predictive value of the resorption of LDH by using contrast -enhanced MRI. However, there are few reports that note the predictive value of plain, non -enhanced MRI. Therefore, no definite predictive factors for the resorption of LDH have been detected on plain MRI. Thirty -four patients with lower limb pain receiving conservative treatment were followed for more than 6 months. MRI was performed every 3 months. The findings of the first MRI in the patients who finally had resorption of LDH (R -group, 21 patients) were compared with those of the patients who exhibited no resorption of LDH (N -group, 13 patients). The MRI evaluation included the signal intensity of LDH, migration of LDH. The transition of the visual analogue scale (VAS) of lower limb pain was also compared. The R -group had significantly more patients with iso -signal intensity in comparison to the signal intensity of the nucleus pulposus observed on T1 weighted images (WI) and high -signal intensity in comparison to the signal intensity of the annulus fibrosus observed on T2 WI, whereas the N -group had more patients with the high -signal intensity on both T1 and T2 WI. The R -group had significantly more patients with migration. The VAS significantly improved at 3 and 6 months in both groups. However, no statistically significant difference was detected between the 2 groups. It is very valuable that the results clearly indicate the predictive factors on plain MRI concerning the resorption of LDH. The study also showed that lower limb pain would gradually improve even in the patients who exhibited no resorption. Therefore, it is important in the treatment of LDH to observe the clinical symptoms carefully without overestimating MRI findings.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The Predictive Factors for the Resorption of a Lumbar Disc Herniation on Plain Mri

Iwabuchi

Murakami

Ara

et al. 2010

Fukushima J. Med. Sci.

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“…The needle tip was found to be placed in or close to the operated area in five (present cases #1, 3, 5 and reported cases #6, 7) out of the six patients where this could be determined (Table 4). Epidural scar tissue has abundant vasculature [32,33] resulting from neo-angiogenesis. Neo-angiogenesis most probably arises from adjacent pre-existing vessels, as observed in some intraspinal benign tumours [34].…”

Section: Discussionmentioning

confidence: 99%

Paraplegia complicating selective steroid injections of the lumbar spine. Report of five cases and review of the literature

et al. 2009

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“…Sequestrated discs can be diagnosed more accurately with Gadolinium-DTPA enhancement, which shows anterior rim enhancement of the sequestrated portion on the Tl-weighted axial image and round rim enhancement on the Tl-weighted sagittal image [5,6,9,12]. It is therefore necessary to define the posterior longitudinal ligament on the T2-weighted image [6,9].…”

Section: Discussionmentioning

confidence: 99%

Magnetic resonance imaging in the evaluation of the lumbar herniated intervertebral disc

Kim

Lee

et al. 1993

International Orthopaedics

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Two hundred and eleven patients with lumbar disc herniation at 242 levels were divided into 5 groups by their appearances on magnetic resonance imaging (MRI), and the findings at operation were compared to assess the accuracy of the MRI classification. There were no negative explorations. There was 92% sensitivity, 91% specificity and 92% accuracy for MRI in distinguishing protruded discs from other forms of lumbar disc herniation. For sequestrated discs there was 92% sensitivity, 99% specificity and 97% accuracy. In the extruded subligamentous type there was 71% sensitivity, 82% specificity and 79% accuracy, and 52% sensitivity, 92% specificity and 81% accuracy in the extruded transligamentous type. The overall accuracy of MRI predicting the types of herniated lumbar intervertebral disc was 85%. High resolution MRI is sensitive in detecting disc disease and specific in characterizing various subgroups of disc herniation, especially those which are sequestrated.

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Assessment of extradural degenerative disease with Gd-DTPA-enhanced MR imaging: correlation with surgical and pathologic findings.

Cited by 27 publications

References 3 publications

The Predictive Factors for the Resorption of a Lumbar Disc Herniation on Plain Mri

The Predictive Factors for the Resorption of a Lumbar Disc Herniation on Plain Mri

Paraplegia complicating selective steroid injections of the lumbar spine. Report of five cases and review of the literature

Magnetic resonance imaging in the evaluation of the lumbar herniated intervertebral disc

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