نتایج جستجو برای: fluoroscopy

تعداد نتایج: 4962  

Journal: :Arrhythmia & electrophysiology review 2013
Xianxian Jiang Lukas Rc Dekker

To assess patient radiation during catheter ablation procedures and operator differences. From 84 patients (51 males, age 63 ± 10 years) undergoing complex catheter ablation by three experienced operators we collected: body mass index (BMI), procedure type and time, fluoroscopy time, dose area product (DAP), air kerma and X-ray system setting (cine, collimation and angiographic imaging angle). ...

2015
Kentaro HAYASHI Nobutaka HORIE Yoichi MOROFUJI Shuji FUKUDA Susumu YAMAGUCHI Tsuyoshi IZUMO

Intraoperative angiography (IOA) is employed for the treatment of the complicated cases in neurological surgery. The IOA is usually performed with OEC portable digital subtraction angiography (DSA) unit. We are performing IOA with portable fluoroscopy unit with simple DSA function and report its usefulness on neurosurgical treatment. IOA or hybrid treatment with mobile fluoroscopy system was pe...

2013
Ji Hye Min Min Woo Lee Dong Ik Cha Yong Hwan Jeon Sung Wook Shin Sung Ki Cho Hyunchul Rhim Hyo K. Lim

OBJECTIVE To assess the technical feasibility and local efficacy of percutaneous radiofrequency ablation (RFA) combined with transcatheter arterial chemoembolization (TACE) for an intermediate-sized (3-5 cm in diameter) hepatocellular carcinoma (HCC) under the dual guidance of biplane fluoroscopy and ultrasonography (US). MATERIALS AND METHODS Patients with intermediate-sized HCCs were treate...

Journal: :Circulation 2004
Lars Lickfett Mahadevappa Mahesh Chandra Vasamreddy David Bradley Vinod Jayam Zayd Eldadah Timm Dickfeld Deborah Kearney Darshan Dalal Berndt Lüderitz Ronald Berger Hugh Calkins

BACKGROUND The purpose of this study was to determine the radiation exposure during catheter ablation of atrial fibrillation (AF) using the pulmonary vein (PV) approach. METHODS AND RESULTS The study included 15 patients with AF and 5 patients each with atrial flutter and atrioventricular nodal reentrant tachycardia (AVNRT) who underwent fluoroscopically guided procedures on a biplane x-ray s...

Journal: :AJNR. American journal of neuroradiology 2017
P G Kranz A B Joshi L A Roy K R Choudhury T J Amrhein

BACKGROUND AND PURPOSE Inadvertent intrafacet injection can occur during interlaminar epidural steroid injection, resulting in a false-positive loss of resistance and nontarget injection of medication. The purpose of this investigation was to compare the observed rates of this phenomenon during lumbar interlaminar epidural steroid injection performed by using conventional fluoroscopic and CT fl...

2016
Hamdy Aboutaleb

Purpose: To compare the success and complication rates of ultrasound with fluoroscopically guided Percutaneous Nephrolithotomy (PCNL) in hydronephrotic kidneys. Patients and Methods: The computer archived files of patients with renal calculi who underwent PCNL between October 2007 and November 2012 were retrospectively reviewed. The study included adult patients with hydronephrotic kidneys. Bas...

Journal: :iranian journal of radiation research 0
f. bouzarjomehri department of medical physics, shahid sadooghi university of medical sciences, yazd, iran v. tsapaki department of medical physics, konstantopoulio hospital, nea ionia, athens, greece

background: the number of interventional cardiology (ic) procedures has increased rapidly. coronary angiography (ca) and percutaneous transluminal coronary angioplasty (ptca) are now widely performed as a matter of routine, and they are considered safe procedures for experienced cardiologists. however, it is also known that these procedures are associated with high radiation doses due to long f...

Journal: :Acta Radiologica 1996

Journal: :Japanese Journal of Radiological Technology 1959

Journal: :Radiation protection dosimetry 2001
A Schreiner-Karoussou

X ray procedures which involve fluoroscopy often give significant radiation doses to patients. A valuable radiation protection procedure is the adoption of a quality assurance programme which will ensure the continual production of optimal quality images with the minimum necessary dose to the patient. Various publications exist which provide information on quality assurance (QA) and constancy c...

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