Application value of magnetic resonance hydrography of the inner ear in cochlear implantation.

Objective: This study aims to investigate the application value of magnetic resonance (MR) hydrography of the inner ear in cochlear implantation.

Methods: 146 patients were enrolled. MR hydrography and spiral CT examinations for the intracranial auditory canal were performed before surgery, and all imaging results were statistically analyzed in order to explore the application value of MR hydrography of the inner ear in cochlear implantation.

Decreased Regional Cerebral Perfusion at Resting State in Acute Posttraumatic Stress Disorder Resulting From a Single, Prolonged Stress Event.

Rationale And Objectives: This study evaluated the altered regional cerebral blood flow (rCBF) in resting state in patients with acute posttraumatic stress disorder (PTSD) 3 months after trauma.

Materials And Methods: The rCBF was measured in 30 patients with acute PTSD and 36 healthy controls.

Results: Survivors with acute PTSD showed decreased rCBF, the Clinician-Administered PTSD Scale score correlated negatively with the rCBF, and rCBF at resting state decreased in acute PTSD.

Seminal vesicle invasion in prostate cancer: prediction with combined T2-weighted and diffusion-weighted MR imaging.

The aim of this study was to evaluate the usefulness of diffusion-weighted imaging (DWI) in detecting seminal vesicle invasion (SVI). A total of 283 patients underwent conventional MRI and DWI before prostate cancer surgery. The apparent diffusion coefficient (ADC) values of all PCa foci, SVI and seminal vesicle were measured.

Diffusion-weighted imaging in normal prostate and differential diagnosis of prostate diseases.

Background: During the past several years, the morbidities of prostate diseases have increased sharply all over the world. Diffusion-weighted imaging (DWI) is an MR-based technique that probes the function of tissues. We attempt to investigate the diagnostic value of DWI and apparent diffusion coefficient (ADC) in normal prostate gland and prostate diseases.

Temporal evolution of spinal cord infarction in an in vivo experimental study of canine models characterized by diffusion-weighted imaging.

Purpose: To determine the temporal evolution of diffusion abnormalities of in vivo experimental spinal cord infarction.

Materials And Methods: Guided by a digital subtract angiography (DSA) monitor, an agent of 1:1 match of lipiodol and diatrizoate meglumine was injected into bilateral T9-11 intercostal arteries of six dogs to embolize the spinal branches of intercostal arteries and establish the canine spinal cord infarction models. The progression of experimental spinal cord infarction was followed by dynamic MRI, including diffusion-weighted imaging (DWI) on a 1.