نتایج جستجو برای: Radiographic image

تعداد نتایج: 403176  

Journal: :journal of paramedical sciences 0
hamed manoochehri khoshinani department of radiology, faculty of paramedicine, hamadan university of medical science, hamadan, iran samira heidari department of radiology, faculty of paramedicine, hamadan university of medical science, hamadan, iran

repeating x-ray radiographs, as a common problem in radiology units, represent additional, non-billable costs due to increased film, chemistry, and equipment use as well as increased personnel time. furthermore, patients receive additional radiation exposure from repetitions and must remain on the premises until the second exam is completed. compounding the overt negative financial impact on th...

Journal: :journal of dentistry, tehran university of medical sciences 0
mahkameh moshfeghi majid shahbazian soodabeh sadat sajadi sepideh sajadi hossein ansari

objectives : optimum viewing conditions facilitate identification of radiographic details and decrease the need for retakes, patients’ costs and radiation dose. this study sought to evaluate the effects of different viewing conditions on radiographic interpretation. materials and methods: this diagnostic study was performed by evaluating radiograph of a 7mm-thick aluminum block, in which 10 hol...

Background and purpose: Image quality together with low patient dose is two important goals in radiography procedures. Acquire radiographic images with inadequate quality give rise to uselessly patient dose, improper diagnosis, waste the cost and impose the biological effect to the patients. In this study image quality was evaluated for most common radiographic procedures based on indentified i...

Journal: :iranian endodontic journal 0
roza haghgoo department of pedodontics, dental school, shahed university of medical sciences, tehran, iran farid abbasi department of oral medicine, dental school, shahed university of medical sciences, tehran, iran.

introduction: pulpotomy of carious primary teeth with an exposed pulp is a common treatment option. pulpotomy has been conducted with various medicaments over the years. the aim of this study was to evaluate clinical and radiographic success of primary vital pulpotomy with proroot and root mta. materials and methods: in this randomized clinical trial, children aged between 3-7 years who met the...

Journal: :iranian journal of medical physics 0
abolfazl lakdashti ph.d. student of computer engineering, islamic azad university, research and science branch, tehran, iran mohammad shahram moin assistant professor and director of multimedia research group, it faculty, iran telecom research center, tehran, iran kambiz badie associate professor and director of it faculty, iran telecom research center, tehran, iran

introduction: content based image retrieval (cbir) is a method of image searching and retrieval in a  database. in medical applications, cbir is a tool used by physicians to compare the previous and current  medical images associated with patients pathological conditions. as the volume of pictorial information  stored in medical image databases is in progress, efficient image indexing and retri...

Introduction: Phantom studies facilitate the implementation of radiation dose surveillance as a function of radiographic technical parameters for minimizing patient radiation dose. The evidence of such investigations can then be used to evaluate technical parameters used in the radiographic procedures to reduce radiation dose without compromising the image quality. Material and Methods: This ex...

Journal: :journal of dental research, dental clinics, dental prospects 0
tahmineh razi arezu mohammadi morteza ghojazadeh

background and aims. in periapical radiographic technique, the changes will be visible only after considerable deposition or resorption while digital subtraction technique visualizes slight density changes. this study was aimed to compare visualization of density changes in conventional periapical radiographs and digital subtraction technique with or without image enhancement. materials and met...

Journal: :archives of trauma research 0
saeed safari department of emergency medicine, shohadaye tajrish hospital, shahid beheshti university of medical sciences, tehran, ir iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی شهید بهشتی (shahid beheshti university of medical sciences) alireza baratloo department of emergency medicine, shohadaye tajrish hospital, shahid beheshti university of medical sciences, tehran, ir iran; department of emergency medicine, shohadaye tajrish hospital, shahid beheshti university of medical sciences, tehran, ir iran. tel: +98-9122884364, fax: +98-2122721155سازمان اصلی تایید شده: دانشگاه علوم پزشکی شهید بهشتی (shahid beheshti university of medical sciences) ahmed said negida faculty of medicine, zagazig university of medical sciences, zagazig, egypt morteza sanei taheri department of radiology, shohadaye tajrish hospital, shahid beheshti university of medical sciences, tehran, ir iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی شهید بهشتی (shahid beheshti university of medical sciences) behrooz hashemi department of emergency medicine, shohadaye tajrish hospital, shahid beheshti university of medical sciences, tehran, ir iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی شهید بهشتی (shahid beheshti university of medical sciences) samaneh hosseini selkisari department of medicine, shahid beheshti university of medical sciences, tehran, ir iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی شهید بهشتی (shahid beheshti university of medical sciences)

results the evaluation of eps was identical to that of the radiologists in 89.5% of the cases. ninety-eight percent (98%) indicated total agreement and 1.5 percent total disagreement. conclusions there is a high agreement between eps and radiologists in cxr interpretations in shohadaye tajrish hospital. thus, eps can substitute radiologists in the emergency department. more improvements are rec...

Journal: :iranian journal of radiology 0
maria del mar travieso aja imaging diagnostic service, san roque hospital group, las palmas, spain; imaging diagnostic service, san roque hospital group, las palmas, spain. tel: +34-928012600, fax: +34-928451461 purificacion munoz imaging diagnostic service, san roque hospital group, las palmas, spain mario rodriguez rodriguez imaging diagnostic service, san roque hospital group, las palmas, spain victor vega benitez department of surgery, insular and maternal and child hospitals (chuimi), las palmas, spain octavio p. luzardo research group in environment and health, research institute of biomedical and health sciences (iuibs), universidad de las palmas de gran canaria, las palmas, spain

up to 19% of breast malignancies may be missed by conventional imaging techniques, especially when they are concurrent or co-located with other benign lesions. however, more sensitive techniques, such as magnetic resonance imaging (mri), are often too expensive for routine use in developing countries. contrast-enhanced, dual-energy digital mammography (cesm) is a recently introduced imaging mod...

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