Author

B. M. Ishizuka

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Review Open access Sep 2026

Evaluating the Swallow-Tail Sign on susceptibility-weighted imaging (SWI) for Parkinson's disease diagnosis: A bivariate meta-analysis.

BACKGROUND AND PURPOSE The Swallow-Tail Sign (STS), reflecting nigrosome-1 integrity in the substantia nigra, is a magnetic resonance imaging biomarker for Parkinson's disease (PD). Although susceptibility-weighted imaging (SWI) is widely available, the diagnostic performance of STS on SWI has not been comprehensively...

V. A. Ohannesian, B. M. Ishizuka, C. H. Tudino et al. · Journal of neuroradiology =... · 0 citations

Review Open access Aug 2026

Effectiveness of Doppler ultrasound in the evaluation of venous thoracic outlet syndrome: A bivariate diagnostic meta-analysis.

Background Doppler ultrasound is a widely used non-invasive imaging modality for evaluating venous thoracic outlet syndrome (vTOS), a condition marked by subclavian vein compression that can lead to complications such as thrombosis and pulmonary embolism. Despite recommendations from the American College of Radiology (...

V. A. Ohannesian, B. M. Ishizuka, I. Menezes et al. · Ultrasound · 0 citations