Abstract
Our goal was to find MRI signs of use for identifying a spinal arachnoid diverticulum. Three cases of spinal arachnoid diverticula, one extradural and two intradural, were examined on a 1.5 T imager. There was obvious mass effect on the adjacent structures in one case and increased signal intensity in the diverticulum on proton density- and T2-weighted images in two cases. Signal changes due to turbulent movement of the spinal fluid inside the diverticula were seen in all cases on sagittal fast spin-echo (FSE) proton density- and T2-weighted images; it was difficult to tell whether these signal changes imply a communication or are simply FSE artefacts. On contrast-enhanced studies, all cases showed partial enhancement inside the diverticula. There thus are four signs of diverticula: mass effect, the increased signal, signal void sign and partial enhancement; the last of these, the most reliable, has never been reported before.
| Original language | English |
|---|---|
| Pages (from-to) | 446-449 |
| Number of pages | 4 |
| Journal | Neuroradiology |
| Volume | 39 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 1997 |
| Externally published | Yes |
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Keywords
- Arachnoid diverticula
- Gadolinium
- Magnetic resonance imaging
- Spine
ASJC Scopus subject areas
- Clinical Neurology
- Radiology Nuclear Medicine and imaging
- Radiological and Ultrasound Technology
Cite this
The MRI signs of spinal arachnoid diverticula. / Chen, C. J.; Ro, L. S.
In: Neuroradiology, Vol. 39, No. 6, 1997, p. 446-449.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - The MRI signs of spinal arachnoid diverticula
AU - Chen, C. J.
AU - Ro, L. S.
PY - 1997
Y1 - 1997
N2 - Our goal was to find MRI signs of use for identifying a spinal arachnoid diverticulum. Three cases of spinal arachnoid diverticula, one extradural and two intradural, were examined on a 1.5 T imager. There was obvious mass effect on the adjacent structures in one case and increased signal intensity in the diverticulum on proton density- and T2-weighted images in two cases. Signal changes due to turbulent movement of the spinal fluid inside the diverticula were seen in all cases on sagittal fast spin-echo (FSE) proton density- and T2-weighted images; it was difficult to tell whether these signal changes imply a communication or are simply FSE artefacts. On contrast-enhanced studies, all cases showed partial enhancement inside the diverticula. There thus are four signs of diverticula: mass effect, the increased signal, signal void sign and partial enhancement; the last of these, the most reliable, has never been reported before.
AB - Our goal was to find MRI signs of use for identifying a spinal arachnoid diverticulum. Three cases of spinal arachnoid diverticula, one extradural and two intradural, were examined on a 1.5 T imager. There was obvious mass effect on the adjacent structures in one case and increased signal intensity in the diverticulum on proton density- and T2-weighted images in two cases. Signal changes due to turbulent movement of the spinal fluid inside the diverticula were seen in all cases on sagittal fast spin-echo (FSE) proton density- and T2-weighted images; it was difficult to tell whether these signal changes imply a communication or are simply FSE artefacts. On contrast-enhanced studies, all cases showed partial enhancement inside the diverticula. There thus are four signs of diverticula: mass effect, the increased signal, signal void sign and partial enhancement; the last of these, the most reliable, has never been reported before.
KW - Arachnoid diverticula
KW - Gadolinium
KW - Magnetic resonance imaging
KW - Spine
UR - http://www.scopus.com/inward/record.url?scp=0030904730&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0030904730&partnerID=8YFLogxK
U2 - 10.1007/s002340050443
DO - 10.1007/s002340050443
M3 - Article
VL - 39
SP - 446
EP - 449
JO - Neuroradiology
JF - Neuroradiology
SN - 0028-3940
IS - 6
ER -