Estimation and clinical verification of the effective and skin doses for pediatric and adult patients undergoing the cardiac interventional examination using five PMMA phantoms and TLD/ionization chamber technique.

Background: Effective and skin doses gain much attention since the cardiac catheterization laboratory (CCL) is a place where both patients and medical staff are exposed to X-ray or fluoroscopy environment and gain a cumulative dose during the cardiac interventional procedure.

Objective: These doses for pediatric and adult patients undergone cardiac interventional examination using five PMMA phantoms and thermoluminescence dosimeter (TLD)/ionization chamber technique were estimated in this work with the further clinical verification.

Methods: Five PMMA phantoms (10, 30, 50, 70, and 90 kg) were customized to represent baby, child, adult female, adult male, and overweight adult (by Asian complexion standards), respectively, in accordance with the ICRU-48 report.

Taguchi dynamic analysis application to computer tomography number-mass density linear dependence optimization.

The Taguchi dynamic analysis was applied to optimize the linear dependence between computer tomography (CT) number and mass density. The Taguchi unique L(2 × 3) orthogonal array was utilized in the dynamic analysis of a commercial Catphan 600 phantom with CTP 404 module, in order to optimize eighteen combinations of six factors controlling the CT simulator operation, i.e.

Different Mid-Term Prognostic Predictors of Major Adverse Events in Diabetic and Nondiabetic Peripheral Artery Disease Presenting With Critical Limb Ischemia.

We compared midterm prognostic predictors of peripheral artery disease (PAD) with or without diabetes mellitus (DM) presenting with critical lower limb ischemia (CLI). A total of 172 patients with PAD (109 DM; 63 non-DM) were enrolled. The major adverse events (MAEs) were death or amputation.

Axillofemoral bypass relieves visceral malperfusion in type B aortic dissection.

A 58-year-old man with acute type B aortic dissection presented with right lower limb cyanosis, mesenteric ischemia, and acute renal failure. He was treated with extraanatomic right axillofemoral bypass surgery alone, recovered completely from renal, mesenteric, and lower extremity malperfusion shortly thereafter, and lived free of symptoms for the following year. Follow-up computed tomography angiograms documented adequate expansion of the true aortic lumen and good perfusion of visceral organs.