Publications by authors named "B D Matteson"
Article Synopsis
- An optimized method for analyzing environmental soil and sediment samples for neptunium (237Np) and plutonium isotopes (239Pu, 240Pu) was developed using ICP-MS with a 242Pu isotope dilution standard.
- The method boasts high yield and quick analysis times, with the 242Pu tracer being commercially available, enhancing its practicality.
- Control experiments show an overall measurement precision of around ± 5% for 237Np concentration, with successful accuracy confirmed through tests on a Peruvian soil blank and various NIST standard reference materials.
Barriers to physical activity maintenance after cardiac rehabilitation.
J Cardiopulm Rehabil
February 2005
Purpose: Little is known about the contextual determinants for the maintenance of physical activity after cardiac rehabilitation. This study aimed to examine perceived social, psychological, and health-related barriers to the maintenance of physical activity among phase 2 cardiac rehabilitation graduates.
Methods: Researchers using an open-ended format asked 160 participants (121 men and 39 women) 6 months after rehabilitation to identify perceived barriers to physical activity maintenance.
Purpose: To report the endovascular repair of rare true aneurysms of the subclavian artery in patients with degenerative connective tissue disorders.
Case Reports: Two patients, one with Marfan syndrome and the other with idiopathic cystic medial necrosis, presented with 3 subclavian artery aneurysms. A Wallgraft and 2 Viabahn covered stents were used to successfully exclude these aneurysms.
Objective: This study was undertaken to describe the technique of transfemoral superselective coil embolization of type II endoleak and its influence on abdominal aortic aneurysm diameter.
Methods: Over 23 months, 104 aortic stent grafts were deployed to exclude abdominal aortic aneurysms, at an academic medical center. Increase in aneurysm diameter and perigraft findings on contrast material-enhanced computed tomography scans prompted arteriography.
Objective: To compare results of carotid angioplasty and stenting (CAS) with carotid endarterectomy (CEA) in high cardiac risk patients.
Methods: Patients ineligible for carotid revascularization by North American Symptomatic Carotid Endarterectomy Trial/Asymptomatic Carotid Atherosclerosis Study criteria were treated with CAS (n = 11) or CEA (n = 10).
Results: Significant numbers had cardiac (CAS 72%, CEA 60%; P = 0.