Comparative study of meningeal enhancement in canine and feline otitis media-interna: 3D-gradient-echo vs. fat-suppressed turbo-spin-echo-T1-weighted sequences in MRI
Florian Graf, Matthias Dennler, Katrin Beckmann, Nico Mauri, Mariano Makara, Adriano Wang-Leandro
TL;DR
This study compares two MRI techniques for detecting meningeal enhancement in dogs and cats with ear infections, finding one method more effective in cats.
Contribution
The study provides new evidence on the effectiveness of fat-suppressed MRI sequences for detecting meningeal enhancement in feline and canine otitis.
Findings
FS-TSE-T1W detected meningeal enhancement significantly more often than 3D-GRE-T1W in cats.
Both sequences showed substantial inter- and intra-observer agreement.
The benefit of FS-TSE-T1W was not observed in dogs.
Abstract
MRI plays an important role in diagnosing meningeal disease in dogs and cats. It remains unclear which T1 sequence most reliably detects meningeal contrast enhancement. The aim of this retrospective study was to compare detection rate, inter- and intra-observer agreement of meningeal enhancement in otitis media-interna between 3D-GRE-T1W and transverse FS-TSE-T1W sequences. MRI studies of dogs and cats with otitis media and interna from 2017 to 2023 including both sequences of interest were collected and supplemented with a control group. Five observers assessed presence or absence of meningeal enhancement twice independently in each sequence and blinded to the diagnosis. Detection rate, inter- and intra-observer agreement were evaluated using Student's T-Test and Fleiss' Kappa test, respectively. Cases from 46 dogs and 74 cats and 21 control cases met the inclusion criteria. On…
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Taxonomy
TopicsMicrobial infections and disease research · Veterinary Oncology Research · Herpesvirus Infections and Treatments