Michael Mu Huo Teng

Learn More
BACKGROUND AND PURPOSE Percutaneous vertebroplasty is known for its pain-relieving effect. Our purpose was to evaluate its effect on the kyphosis angle, wedge angle, and height of the fractured vertebral body. METHODS We reviewed digital radiographs of 73 vertebral bodies in 53 patients before and after vertebroplasty. We measured the spinal kyphosis(More)
To evaluate the imaging quality of head CT at lowered radiation dose by combining filtered back projection (FBP) and iterative reconstruction (IR) algorithms. Experimental group A (n = 66) underwent CT with 43 % tube current reduction, and group B (n = 58) received an equivalent reduced dose by lowering the tube voltage. An age- and sex-matched control(More)
Dynamic-susceptibility-contrast (DSC) magnetic resonance imaging records signal changes on images when the injected contrast-agent particles pass through a human brain. The temporal signal changes on different brain tissues manifest distinct blood-supply patterns which are vital for the profound analysis of cerebral hemodynamics. Under the assumption of the(More)
T1-Weighted MR Images: A Biopsy Sample Re-Examined To determine the pathologic process responsible for the signal intensity changes of hyperintense putamen on T1-weighted MR images (Fig 1A), we had previously performed stereotactic biopsy in a 72year-old man 3 months after the onset of stroke and hemiballism. The results revealed a fragment of gliotic brain(More)
The MR finding of an acute spinal epidural hematoma (SEH) can mimic epidural neoplastic or inflammatory lesions, because acute SEH appears hypointense on T1-weighted images and hyperintense on T2-weighted images. We report on two cases of acute SEH with unusual contrast enhancement patterns on MR images. Contrast enhancement can be an MR finding of acute(More)
RATIONALE AND OBJECTIVES We evaluated the effect of the arterial input function (AIF) on computed tomography perfusion (CTP) in patients with unilateral high-grade stenosis or occlusion in the carotid artery or middle cerebral artery without acute stroke. MATERIALS AND METHODS CTP datasets were retrospectively postprocessed using the same venous output(More)
PURPOSE This study retrospectively evaluated the technical and hemostatic outcomes of reconstructive and deconstructive endovascular management in patients with head and neck cancers associated with carotid blowout syndrome (CBS). METHODS Twenty-four patients with head and neck cancers with CBS involving the main trunk of carotid artery underwent(More)
BACKGROUND New fractures in adjacent vertebral bodies were found after percutaneous vertebroplasty. We evaluated the correlation between extent of polymethylmethacrylate cement and occurrence of post-vertebroplasty fractures in patients with osteoporosis. METHODS Totally 162 adjacent vertebral bodies with no fracture at the time of vertebroplasty and the(More)
BACKGROUND Carotid ulceration plaque is a strong risk factor for stroke and systemic vascular events. The purpose of this study was to assess immediate and follow-up ulcer morphology after carotid angioplasty and stenting (CAS). METHODS AND RESULTS A total of 124 patients were included in the study. Ulcerative plaques were identified in 92 arteries from(More)
Background: To report the dynamic magnetic resonance (MR) imaging findings of hepatolithiasis. Methods: Dynamic MR images (fast spoiled gradient echo sequence with intravenous injection of gadopentate dimeglumine) and computed tomography, cholangiography, or angiography of nine patients with hepatolithiasis are analyzed. Results: All affected hepatic(More)