[Effect of polyethylene terephthalate (Dacron®) on functional potential of human bone-marrow/progenitor stem cells].

Vascular grafts made of polytetrafluoroethylene and polyethylene terephthalate have widely been used in cardiovascular surgery. The causes of delayed colonization of such grafts by endotheliocytes and mesenchymal stem cells have not been adequately investigated. The authors examined the effect of polyethylene terephthalate on the functional activity of human bone marrow mesenchymal stem cells and endothelial progenitor cells in vitro.

Glioblastoma-arteriovenous fistula complex: imaging characteristics and treatment considerations.

Although a certain degree of arteriovenous shunting may be expected in glioblastoma, to our knowledge, the coexistence of a glioblastoma and arteriovenous fistula has not been previously reported. In this case report, we present such a lesion and discuss its diagnosis with a multimodal imaging approach. Additionally, we discuss treatment considerations for such a lesion.

Acute calcific longus colli tendinitis: an unusual location and presentation.

Acute calcific longus colli tendinitis (LCT) has been reported as an unusual cause of acute-onset neck pain, dysphagia, and headache.(1-5) As described in most of the published reports, LCT traditionally manifests on computed tomography (CT) imaging as paramidline calcium hydroxyapatite crystal deposits anterior to the C1 and C2 vertebral bodies. However, recent studies have brought attention to the disease existing at the C4-C5 and C5-C6 levels.

Semiautomated detection of cerebral microbleeds in magnetic resonance images.

Cerebral microbleeds (CMBs) are increasingly being recognized as an important biomarker for neurovascular diseases. So far, all attempts to count and quantify them have relied on manual methods that are time-consuming and can be inconsistent. A technique is presented that semiautomatically identifies CMBs in susceptibility weighted images (SWI).

Imaging cerebral microbleeds using susceptibility weighted imaging: one step toward detecting vascular dementia.

Purpose: To monitor changes in the number of cerebral microbleeds (CMBs) in a longitudinal study of healthy controls (HC) and mild-cognitively impaired (MCI) patients using susceptibility weighted imaging (SWI).

Materials And Methods: SWI was used to image 28 HC and 75 MCI patients annually at 1.5 Tesla over a 4-year period.