- CTA and CTP for Detecting Distal Medium Vessel Occlusions: A Systematic Review and Meta-analysis
This systematic review and meta-analysis aimed to compare the diagnostic test accuracy for CTA and CTP in the detection of distal medium vessel occlusion. The study found consistent evidence for a higher sensitivity in detecting distal medium vessel occlusion, particularly in arteries beyond the M2 segment of MCA, with multiphase CTA or CTP compared with single-phase CTA.
- Temporal Characteristics of CSF-Venous Fistulas on Dynamic Decubitus CT Myelography: A Retrospective Multi-Institution Cohort Study
This retrospective multi-institution cohort study analyzed the temporal features of CSF-venous fistula (CVF) visualization on dynamic decubitus CT myelography (dCTM) in 48 patients. The results showed that most CVFs were visible on first or subsequent phases of dCTM, but approximately 1 in 8 were only visible on either the early or delayed phase. The authors conclude that acquiring greater than 1 phase of imaging increases the sensitivity of dCTM by increasing its temporal resolution.
- Cervical Osteomyelitis and Diskitis as a Complication of Neopharyngeal Breakdown: A Multisite Case Series Review
This case series of 11 patients status post laryngectomy/pharyngectomy describes the imaging findings of pharyngoesophageal wall breakdown with subsequent cervical spine infection. The authors show that MRI is more sensitive for spine infection in these patients presenting with neck, fever, and serologic evidence of infection.
- CT of the Larynx: Is an Additional High-Resolution Acquisition Necessary for Diagnostic Accuracy?
The purpose of this study was to determine whether reformatted laryngeal images derived from a standard neck CT acquisition can replace a separate dedicated high-resolution laryngeal acquisition. In 200 patients, the authors found a discrepancy in nearly one-quarter of the interpretations. Both up-staging and down-staging errors were made with the standard neck CT protocol and were critical in defining the optimal therapeutic approach. The authors concluded that the addition of focused images of the larynx after a second contrast bolus and a second acquisition sequence improves the radiologic staging of laryngeal tumors.
- Monoclonal Antibodies: What the Diagnostic Neuroradiologist Needs to Know
The therapeutic use of monoclonal antibodies is rapidly expanding for a variety of diseases. This review article describes commonly used monoclonal antibody-targeted therapeutic agents, their mechanism of action, clinical applications, and major adverse events with a focus on neurologic and neuroimaging manifestations. For example, immunostimulating anticancer mAbs can lead to proinflammatory conditions, while immunosuppressive medications can lead to activation of underlying opportunistic infections. Amyloid-segregating mAbs can lead to amyloid-related imaging abnormalities, and TNF-inhibiting mAbs have a higher incidence of demyelinating abnormalities.