BACKGROUND AND PURPOSE:Quantitative susceptibility mapping allows overcoming several nonlocal restrictions of susceptibilityweighted and phase imaging and enables quantification of magnetic susceptibility. We compared the diagnostic accuracy of quantitative susceptibility mapping and R2* (1/T2*) mapping to discriminate between patients with Parkinson disease and controls.

The QSM value in GPl increases gradually with age, which allows for the identification of GPm in elderly PD subjects.

Objective:We discuss the details of a case in which iatrogenic vertebral arteriovenous fistula (VAVF) was successfully treated with a covered stent.Case Presentation: A 62-year-old man presented with tinnitus after catheterization via the internal jugular vein and subsequently developed iatrogenic VAVF. Under general anesthesia, stent-assisted coil embolization was attempted via the right femoral artery but was unsuccessful. Therefore, a covered stent (Fluency 8 × 40 mm; C. R. Bard, Inc., Tempe, AZ, USA) was deployed, resulting in a marked decrease in shunt flow. The VAVF was obliterated 3.4 months after the procedure without postoperative complications. Conclusion:Endovascular treatment using a covered stent can be an option for iatrogenic VAVF.

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