Rizzo, G;
De Blasi, R;
Capozzo, R;
Tortelli, R;
Barulli, MR;
Liguori, R;
Grasso, D;
(2019)
Loss of Swallow Tail Sign on Susceptibility-Weighted Imaging in Dementia with Lewy Bodies.
Journal of Alzheimer's Disease
, 67
(1)
pp. 61-65.
10.3233/JAD-180687.
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Abstract
We assessed nigral dorsolateral hyperintensity (swallow tail sign) at susceptibility-weighted imaging using 3T-MRI in 15 dementia with Lewy bodies (DLB), 11 Alzheimer’s disease (AD), and 8 frontotemporal dementia (FTD) patients and 10 subjects with subjective memory complaint (SMC). More DLB patients lacked nigral hyperintesity (p < 0.05). Sensitivity, specificity, and accuracy of DLB diagnosis were, respectively: 80%, 64%, and 73% versus AD; 80%, 75%, and 78% versus FTD; and 80%, 90%, and 84% versus SMC. Considering bilateral loss, sensitivity decreased (53%) but specificity increased (82–100%). Swallow tail sign loss, especially if bilateral, can be useful for DLB diagnosis.
| Type: | Article |
|---|---|
| Title: | Loss of Swallow Tail Sign on Susceptibility-Weighted Imaging in Dementia with Lewy Bodies |
| Location: | Netherlands |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.3233/JAD-180687 |
| Publisher version: | http://dx.doi.org/10.3233/JAD-180687 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Dementia with Lewy bodies, magnetic resonance imaging, nigrosome, swallow tail sign, susceptibility-weighted imaging |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > UCL Queen Square Institute of Neurology UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > UCL Queen Square Institute of Neurology > Neurodegenerative Diseases |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10078937 |
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