Comparison of two 3-dimensional user-friendly voxel-based maxillary and 2-dimensional superimposition methods.

Introduction: Cephalometric superimpositions have many uses in orthodontics, including growth evaluation and outcome assessment. However, 2-dimensional (2D) cephalograms can be distorted and yield incomplete 2D data. Cone-beam computed tomography (CBCT) imaging provides a 3-dimensional (3D), undistorted, and more complete patient analysis.

Stent placement for treatment of mesenteric artery stenoses or occlusions.

Purpose: To evaluate stent placement in the treatment of mesenteric ischemia.

Patients And Methods: Twelve patients (eight women, four men; mean age, 63 years) with chronic mesenteric ischemia underwent stent placement for stenoses or occlusions during a 5.5-year period.

Renal lymphoma: spectrum of CT findings and potential mimics.

Renal lymphoma has a broad spectrum of imaging manifestations. Typical patterns of renal lymphoma include multiple renal masses, solitary masses, diffuse infiltration, and invasion from contiguous retroperitoneal disease. Isolated perirenal disease is probably the most atypical form of renal lymphoma and has a variety of appearances, including small curvilinear densities and soft-tissue nodules or plaques.

Local thrombolytic therapy as part of a multidisciplinary approach to acute axillosubclavian vein thrombosis (Paget-Schroetter syndrome).

Purpose: To evaluate the efficacy of thrombolytic therapy in the treatment of acute axillosubclavian vein thrombosis in patients with Paget-Schroetter syndrome.

Materials And Methods: A 4.5-year, retrospective study of all patients with "effort" thrombosis of the axillosubclavian vein was performed.

Percutaneous transluminal stent placement in the abdominal aorta.

Purpose: To retrospectively review and to report the results of stent placement for focal mid-abdominal aortic stenoses.

Materials And Methods: During a 4-year period, 10 focal mid-abdominal aortic stenoses were treated with stent placement in nine patients (six women and three men; mean age, 61 years; range, 49-73 years). All of the stenoses were atherosclerotic in nature except for one at the proximal anastomosis of an aortobi-femoral graft, which may have been from fibrointimal hyperplasia.