Article ; Online: Susceptibility artifact morphology is more conspicuous on susceptibility-weighted imaging compared to T2* gradient echo sequences in the brains of dogs and cats with suspected intracranial disease.
2023 Volume 64, Issue 3, Page(s) 464–472
Abstract: Susceptibility-weighted imaging (SWI) has been found to be more reliable in the detection of vessels and blood products than T2*-weighted gradient echo (GE) in several human brain diseases. In veterinary medicine, published information on the diagnostic ... ...
| Abstract | Susceptibility-weighted imaging (SWI) has been found to be more reliable in the detection of vessels and blood products than T2*-weighted gradient echo (GE) in several human brain diseases. In veterinary medicine, published information on the diagnostic usefulness of SWI is lacking. The aim of this retrospective observational study was to investigate the value of SWI compared to T2*-weighted GE images in a population of dogs and cats with presumed, MRI-based diagnoses grouped as neoplastic (27), cerebrovascular (14), inflammatory (14), head trauma (5), other pathologies (4), or that were normal (36). Areas of signal void (ASV) were assessed based on shape, distribution, number, and conspicuity. Presence of ASV was found in 31 T2*-weighted GE and 40 SWI sequences; the conspicuity of lesions increased in 92.5% of cases with SWI. A 44.7% increase in the number of cerebral microbleeds (CMBs) was identified within the population using SWI (110) compared to T2*-weighted GE (76). Linear ASV presumed to be abnormal vascular structures, as are reported in humans, were identified in 12 T2*-weighted GE and 19 SWI sequences. In presumed brain tumors, abnormal vascular structures were detected in 11 of 27 (40.7%) cases on T2*-weighted GE and in 16 of 27 (59.3%) cases on SWI, likely representing tumor neovascularization; amorphous ASV interpreted as presumed hemorrhages on T2*-weighted GE were diagnosed as vessels on SWI in five of 27 (18.5%) cases. Since SWI shows ASV more conspicuously than T2*-weighted GE, the authors advocate the use of SWI in veterinary patients. |
|---|---|
| MeSH term(s) | Animals ; Cats ; Dogs ; Artifacts ; Brain/diagnostic imaging ; Brain/pathology ; Brain Neoplasms/diagnostic imaging ; Brain Neoplasms/veterinary ; Brain Neoplasms/pathology ; Cat Diseases/diagnostic imaging ; Cat Diseases/pathology ; Dog Diseases/diagnostic imaging ; Dog Diseases/pathology ; Magnetic Resonance Imaging/veterinary ; Magnetic Resonance Imaging/methods |
| Language | English |
| Publishing date | 2023-01-12 |
| Publishing country | England |
| Document type | Journal Article ; Observational Study, Veterinary |
| ZDB-ID | 2142058-0 |
| ISSN | 1740-8261 ; 1058-8183 |
| ISSN (online) | 1740-8261 |
| ISSN | 1058-8183 |
| DOI | 10.1111/vru.13210 |
| Database | MEDical Literature Analysis and Retrieval System OnLINE |
Full text online
More links
Kategorien
Order via subito
This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.