introcduction: pigmented villonodular synovitis (pvs) is rare, benign and proliferative disorder of synovium which consists of villous and/ or nodular formations in joints.diagnosis is determined by clinical features, aspiration of the joint, radiographic features and magnetic resonance imaging (mri).the definitive treatment is the complete resection of affected tissue by open or arthroscopic s...

The vervet monkey is an important nonhuman primate model that allows the study of isolated environmental factors in a controlled environment. Analysis of monkey MRI often suffers from lower quality images compared with human MRI because clinical equipment is typically used to image the smaller monkey brain and higher spatial resolution is required. This, together with the anatomical differences...

F. K. Wacker, S. G. Nour, J. L. Duerk, J. S. Lewin Case Western Reserve University/University Hospitals, Dept. of Radiology, Cleveland, OH, United States Synopsis: The purpose of this study was to assess the feasibility of MRI to control radiofrequency ablation (RFA) of pulmonary tissue in a rabbit model. Puncture and lung RFA were performed in 5 New Zealand White rabbits under MR image control...

MRI guided focused ultrasound is an emerging technique that uses acoustic energy to noninvasively treat intracranial disorders. At high frequencies, it can be used to raise tissue temperatures and ablate discrete brain targets with sub-millimeter accuracy. This application is currently under investigation for a broad range of clinical applications, including brain tumors, movement disorders, an...

Dissertation for the degree of Doctor of Science in Technology to be presented with due permission for public examination and debate in Auditorium S4 at Helsinki University of Technology (Espoo, Finland) on the 7th of July 2003 at 12 o'clock noon.

PURPOSE: Real-time MRI (RT-MRI) is a powerful tool to safely assess and quantify the vocal tract dynamics during speech production. Applications are numerous including addressing open questions in speech science, and informing treatment plans in clinical applications (e.g., oropharyngeal cancer). RT-MRI is intrinsically challenged by trade-offs amongst the spatio-temporal resolution, slice cove...

BACKGROUND Conventional magnetic resonance imaging (MRI) of complex cervical spine disorders may underestimate the magnitude of structural disease because imaging is performed in a nondynamic non-weight-bearing manner. Myelography provides additional information but requires an invasive procedure. METHODS This was a prospective review of the first 20 upright weight-bearing cervical MRI proced...

The application of machine learning techniques to open problems in different medical research fields appears to be stimulating and fruitful, especially in the last decade. In this paper, a new method for MRI data segmentation is proposed, which aims at improving the support of medical researchers in the context of cancer therapy. In particular, our effort is focused on the processing of raw out...