Clinical Scorecard: MRI-Based Segmentation and Morphometric Assessment of Neck Abscesses in Relation to Disease Severity
At a Glance
Category
Detail
Condition
Acute neck abscesses, within the spectrum of acute neck infections
Key Mechanisms
MRI segmentation was used to quantify abscess volume and shape features, including sphericity and compactness, for comparison with manual maximum diameter in relation to severity.
Target Population
Patients with surgically confirmed neck abscess who underwent contrast-enhanced MRI within 48 hours of presentation at a tertiary referral center.
Care Setting
Retrospective, single-center study at a tertiary referral center specializing in head and neck infections; patients received emergency MRI.
Key Highlights
The study assessed whether MRI-derived volume, sphericity, and compactness predict ICU admission and prolonged hospital length of stay better than manual diameter.
The analyzed cohort comprised 227 patients selected from 535 screened patients; exclusions included absent MRI evidence of abscess, unavailable surgical confirmation, non-standard MRI protocol, or insufficient imaging data.
Abscesses were identified by T2 hyperintensity, low apparent diffusion coefficient, and a non-enhancing center surrounded by abnormal enhancement on post-contrast T1-weighted images.
Segmentation included all components of multiloculated abscesses and excluded the enhancing rim; phlegmonous areas without a non-enhancing cavity or concordant restricted diffusion were omitted.
Guideline-Based Recommendations
Diagnosis
The study characterized MRI abscesses as T2-hyperintense collections with low apparent diffusion coefficient, absent central enhancement, and surrounding abnormal tissue enhancement.
Management
Monitoring & Follow-up
Risks
The introduction identifies airway compromise, mediastinitis, and sepsis as complications of acute neck infections.
Patient & Prescribing Data
Consecutive patients with clinically diagnosed acute neck infection, contrast-enhanced MRI within 48 hours of presentation, and surgically confirmed purulent abscess; 227 patients were included in the analysis.
The provided article excerpt describes an imaging and morphometric study and does not report prescribing or treatment outcomes.
Clinical Best Practices
For segmentation in this study, delineation used non-enhancing portions of axial post-contrast T1-weighted Dixon images, guided by concordant T2 hyperintensity and low apparent diffusion coefficient.
A fellowship-trained neuroradiologist reviewed all segmentations; ambiguous cases were adjudicated by consensus.
