ObjectiveTo discuss the characteristics of coronary artery disease in patients with type 2 diabetes using coronary angiography of Dual Source CT. MethodsWe collected the clinical data of patients who underwent coronary angiography of Dual Source CT between December 2010 and November 2012 in Sichuan Provincial People's Hospital and Sichuan Orthopedic Hospital. A total of 302 patients (74 with type 2 diabetes, and 228 with no diabetes) were examined with CT coronary angiography. All images were comprehensively assessed. Types of plaques and luminal narrowing were evaluated. ResultsPatients with type 2 diabetes had more plaques (P<0.05), especially mixed plaques and non-calcified plaques, than non-diabetic patients (P<0.05). The proportions of calcified plaque, mixed plaques, non-calcified plaque in patients with type 2 diabetes were 29.1%, 41.1%, 29.8%, respectively. The proportions of calcified plaque, mixed plaques, non-calcified plaque in patients with nondiabetic patients were 39.7%, 36.0%, 24.3%, respectively. The difference of the composition between diabetes and nondiabetic was significant (P<0.05). There were more mild, moderate and severe narrowing in type 2 diabetic patients than those in non-diabetic patients (P<0.05). ConclusionCoronary angiography of CT depicts a high plaque burden in patients with type 2 diabetes mellitus (mixed plaque is the most common type), which may cause stenosis easily.
ObjectiveTo evaluate the manifestations and diagnostic value of pediatric acute appendicitis with dual-source CT (DSCT). MethodsRetrospectively analysis of CT features of 97cases of surgically and pathologically confirmed pediatric acute appendicitis in our hospital were performed. ResultsAmong 97 patients, 7 cases were diagnosed acute simple appendicitis, 20 cases with acute suppurative appendicitis, perforated and gangrenous appendicitis in 58 cases, and appendiceal abscess in 12 cases. According to the location of appendix confirmed by CT, 28 cases of appendicitis could not be clearly manifested, the cohort of the remaining 69 cases were composed of 20 cases (29.0%) with appendix located in pelvic, 15 cases (21.7%) with appendix in front of ileum, 11 cases (15.9%) with appendix behind ileum, 12 cases (17.4%) with appendix behind cecum, 3 cases (4.3%) with appendix below cecum, 1 case (1.5%) with appendix outside of cecum, and 7 cases (10.2%) with appendix located in other positions. CT and three-dimensional reconstruction findings were as followed:swelling enlarged appendix, appendicoliths, periappendiceal fat fuzzy, peritoneal thickening, ileocecal thickening, mesenteric lymphadenopathy, periappendiceal mass, and abdominal or pelvic fluid. The diagnostic rate of acute simple appendicitis with CT was 85.7% (6/7), acute suppurative appendicitis was 80.0% (16/20), perforated and gangrenous appendicitis was 100% (58/58), appendiceal abscess was also 100% (12/12), the overall diagnostic yield was 94.8% (92/97). ConclusionDSCT can well demonstrate the anatomical location of appendix and pathological changes of surrounding tissues, and has higher diagnostic accuracy, provide powerful information for surgeons.
Early endovascular interventional therapy can effectively improve the prognosis of patients with acute ischemic stroke. Dual-source CT dual-energy scanning, as a new CT imaging technology developed rapidly in recent years, with its unique technical characteristics and advantages, shows potential and application prospects in early endovascular interventional therapy of acute ischemic stroke. This article discusses the value of dual-source CT dual-energy scanning in the early screening and evaluation, the identification of postoperative iodine contrast agent extravasation and secondary cerebral hemorrhage, and the prediction of prognosis of patients with early endovascular interventional treatment of acute ischemic stroke. The purpose is to provide a theoretical basis for better application of dual-source CT dual-energy scanning in early endovascular interventional treatment of acute ischemic stroke.