نتایج جستجو برای: lumbar spine radiography
تعداد نتایج: 95451 فیلتر نتایج به سال:
INTRODUCTION Collimating the primary beam to the area of diagnostic interest (ADI) has been strongly recommended as an effective method to reduce patient's radiation dose and to improve image quality during radiology practice. Lack or inadequate collimation results in excessive radiation dose to patients and deterioration image quality. OBJECTIVE To assess the quality of beam collimation duri...
A 71-year-old woman presented with extreme low back pain. Her lumbar spine radiographs revealed a pathological fracture of L4. The hematology profile was normal (hemoglobin: 12.6 g/dL). The serum electrophoresis revealed an “M”-protein of 39 g/L and the immunofixation showed an immunoglobulin (Ig) G-l paraprotein. The bone marrow trephine biopsy demonstrated a clonal plasma-cell infiltration of...
PURPOSE To investigate a technique for optimizing radiation dose and image quality for a computed radiography system. METHODS Entrance skin doses were measured for phantom models of the pelvis and lumbar spine imaged using the vendor's recommended exposure settings (ie, the reference doses) as well as doses above and below the vendor's recommended settings for both body parts. Images were ass...
background: dose assessment using proper dosimeters is especially important in radiation protection optimization and imaging justification in diagnostic radiology. objective: the aim of this study is to obtain the entrance skin dose (esd) of patients undergoing lumbar spine imaging using two thermoluminescence dosimeters tld-100 (lif: mg, ti) and gr-200 (lif: mg, cu, p) and also to obtain the a...
Low Back Pain (LBP) is a pain condition that attacks the lower part of spine, caused by injury to muscles or ligaments, common causes include lifting wrong weight, poor posture, not exercising regularly and so on. One radiological examinations establish diagnosis LBP radiographic examination lumbar spine. In procedure, patient's position during was arranged sleep supine on table, while at RSI P...
background: osteoporosis is a chronic disease that contributes substantially to decrease physical activity and decline in the quality of life. osteoporosis can be diagnosed easily with the use of dual-energy x-ray absorptiometry (dxa) equipment. the aim of this study was to investigate the magnitude of bone loss on proximal femur and lumbar spine ls in pre- and post-menopausal women from isfaha...
OBJECTIVE To investigate whether spinal osteoarthritis (OA) is responsible for the common finding that lumbar spine bone mineral density (BMD) is greater when measured in the anteroposterior plane than when measured in the lateral plane. METHODS We studied lateral spine radiographs from 63 women who attended a hospital outpatient department for bone density measurement and who also underwent ...
Background: Lumbar spinal stenosis is the most frequent indication for spine surgery. The x-ray and MRI are choice of investigation. Justified use radiography can be cost effective in management lumbar stenosis. Objective was to evaluate compare sensitivity specificity plain diagnosis stenosis.Methods: A multicenter cross sectional analytical study carried out from July 2021 August 2022 on 70 p...
INTRODUCTION Long-term administration of glucocorticoids leads to rapid osteoporosis, and vertebral fractures are one of its most common complications. The methods used in identification are semi-quantitative ones, based on visual assessment, and quantitative ones, which use morphometric criteria. CASE REPORT A 79-year-old woman, who has suffered from polymyalgia rheumatica since July 2012, w...
BACKGROUND This study has aimed to measure the patient dose in entire spine radiography by EOS system in comparison with the digital radiography. METHODS EOS stereo-radiography was used for frontal and lateral view spine imaging in 41 patients in a prospective analytical study. A calibrated dose area product (DAP) meter was used for calibration of the DAP in EOS system. The accuracy and preci...
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