Disc volume reduction with percutaneous nucleoplasty in an animal model.

Study Design: We assessed volume following nucleoplasty disc decompression in lower lumbar spines from cadaveric pigs using 7.1Tesla magnetic resonance imaging (MRI).

Purpose: To investigate coblation-induced volume reductions as a possible mechanism underlying nucleoplasty.

Normal breast parenchyma: contrast enhancement kinetics at dynamic MR mammography--influence of anthropometric measures and menopausal status.

Purpose: To study T1 baseline signal intensity (SI) and contrast material enhancement kinetics of normal breast parenchyma by using dynamic contrast-enhanced (DCE) magnetic resonance (MR) mammography and to determine the influence of anthropometric measures and menopausal status on the variability of these features.

Materials And Methods: Institutional review board approval and written informed consent were obtained. Between June 2008 and September 2011, 345 women (age range, 26-81 years; mean age, 51.

Potentially relevant incidental findings on research whole-body MRI in the general adult population: frequencies and management.

Objectives: To report the frequencies of potentially relevant incidental findings in the general adult population and to develop a protocol for their management in whole-body magnetic resonance imaging (wb-MRI).

Methods: A total of 2,500 adult subjects (1,271 women, 1,229 men; mean age 53 years) from the population-based Study of Health in Pomerania underwent standardised wb-MRI. Additionally, 1,129 participants received contrast-enhanced cardiac MRI, 619 men received MR angiography and 544 women received MR mammography.

Contrast enhancement kinetics of normal breast parenchyma in dynamic MR mammography: effects of menopausal status, oral contraceptives, and postmenopausal hormone therapy.

Objectives: To investigate effects of menopausal status, oral contraceptives (OC), and postmenopausal hormone therapy (HT) on normal breast parenchymal contrast enhancement (CE) and non-mass-like enhancing areas in magnetic resonance mammography (MRM).

Methods: A total of 459 female volunteers (mean age 49.1 ± 12.

Perfusion CT scanning and CT angiography in the evaluation of extracranial-intracranial bypass grafts.

Object: Extracranial-intracranial (EC-IC) bypass surgery remains an important treatment alternative for patients with occlusive cerebrovascular disease. The aim of the present study was to use perfusion CT and CT angiography (CTA) to evaluate cerebral hemodynamics and bypass patency in patients with occlusive cerebrovascular disease before and after EC-IC bypass surgery.

Methods: Ten patients underwent perfusion CT and CTA before and after bypass surgery.