Background: Programmed intermittent epidural bolus (PIEB) as a new technique for labor analgesia has aroused extensive attention. The character of separation the motor block to sensory makes ropivacaine becoming an important local anesthetic analgesia. In this meta-analysis, we aimed assess efficiency and safety PIEB regime compared continuous infusion (CEI) on with following evidence emerged n...

Our aim is to present the role of contrastenhanced CT in the early diagnosis of superior mesenteric artery (SMA) thromboembolism and to report our experience in the fibrinolytic therapy of this disorder using modified Sullivan technique. Contrast-enhanced helical CT clearly demonstrated the various findings of SMA thromboembolism in all 3 cases. In the first 2 patients, the modified Sullivan me...

BACKGROUND Currently computed tomography pulmonary angiography (CTPA) has become a widely accepted clinical tool in the diagnosis of acute pulmonary embolism (PE). OBJECTIVES To report split-bolus single-pass 64-multidetector-row CT (MDCT) protocol for diagnosis of PE. PATIENTS AND METHODS MDCT split-bolus results in 40 patients suspicious of PE were analyzed in terms of image quality of ta...

Contrast enhanced magnetic resonance angiography (CE-MRA) is a common method for imaging the Adamkiewicz Artery (AKA). Test-bolus imaging methods have long been the mainstream, and recently, a time resolved technique (4D-MRA) is also reported. However, the current rates of detection for both are mixed, and the best method has not been established yet. For AKA, the present rate is 72% left, Th8～...

BACKGROUND In the medical literature are described only few clinical cases of esophageal food bolus impaction due to esophageal motility disorders. Moreover, the management of this condition is highly variable with no evidence in the literature to strongly support a clear defined intervention. CASE PRESENTATION In this paper we describe for the first time a case of 53-year-old male with food ...

PURPOSE To study the effect of bolus versus no bolus in the coverage of the nodal tumour volume with intensity-modulated radiotherapy (IMRT) for the treatment of nasopharyngeal carcinoma (NPC). METHODS AND MATERIALS This retrospective study used data from 5 consecutive patients with NPC who were treated with bolus for large neck nodes using IMRT from November 2011-January 2012 in our institut...

A novel temporal correlation technique was used to map the first-pass transit of iodinated contrast agents through the brain. Transit profiles after bolus injections were measured with dynamic computed tomography (CT) scanning (1 image/s over 50 s). A rabbit model of focal cerebral ischemia (n = 6) was used, and dynamic CT scans were performed at 30, 60, 90, and 120 min postocclusion. Within th...

Adrenal vein sampling (AVS) is fundamental for subtype diagnosis in patients with primary aldosteronism. AVS protocols vary between centers, especially for diagnostic indices and for use of adrenocorticotropic hormone (ACTH) stimulation. We investigated the role of both continuous ACTH infusion and bolus on the performance and interpretation of AVS in a sample of 76 patients with confirmed prim...

introduction bolus is a soft and resilient material which is used for increasing skin dose or to even out the irregular patient contour. the main property of various materials used presently as bolus is the water-equivalent electron density. ethyl methacrylate is used as a soft-liner in dentistry and its physical and chemical properties are proved to be nontoxic for human body. the goal of this...