نتایج جستجو برای: coronal ct scan

تعداد نتایج: 192609  

2016
Heloise Barras Vincent Dunet Anne-Lise Hachulla Jochen Grimm Catherine Beigelman-Aubry

BACKGROUND Model-based iterative reconstruction (MBIR) reduces image noise and improves image quality (IQ) but its influence on post-processing tools including maximal intensity projection (MIP) and minimal intensity projection (mIP) remains unknown. PURPOSE To evaluate the influence on IQ of MBIR on native, mIP, MIP axial and coronal reformats of reduced dose computed tomography (RD-CT) ches...

Journal: :iranian journal of radiology 0
hamidreza talari kashan university of medical sciences, kashan, iran; nushin moussavi abdolhossein davoodabadi sasan saidfar fatemeh atoof

conclusions performing routine chest and abdominopelvic ct-scan in conscious blunt trauma patients decreases the hospitalization time but has no effect on patient complications and final outcome. using a selective approach and performing ct-scan only for symptomatic patients, would be an appropriate option to decrease radiation dose and facility overuse. nevertheless, the concern of missing occ...

Journal: :AJNR. American journal of neuroradiology 1988
S Marcovitz R Wee J Chan J Hardy

Between 1980 and 1986, 58 patients (23 women and 35 men) had coronal CT scans of the sella turcica for suspected growth hormone-secreting adenoma and underwent transsphenoidal exploration. The CT examinations were performed with a fourth-generation EMI scanner (CT 7070), and reports of the preoperative CT were compared with the findings at transsphenoidal exploration. The same neurosurgeon perf...

حمیدرضا زهره‌ای, , علیرضا عبداللهی, , هژیر صابری, ,

Background: Headache is one of the most common problems that bring patients to doctors' offices. Many physicians order neuroimaging studies after taking the history of the patient and performing a physical examination. These neuroimaging studies are often requested due to the probable existence of an intracranial lesion. However, at times they are requested to allay the fears of patients or eve...

Journal: :International Journal of Advanced Dental Sciences and Technology (IJADST) 2021

The article discusses the possibilities of computed tomography and magnetic resonance imaging when examining patients in an ENT clinic. authors’ materials cover complex observations diseases nose paranasal sinuses. were operated on, which made it possible to compare data radiation studies with operational findings cytological material. CT scan coronal projection allows clarify diagnosis, determ...

Journal: :European journal of cardio-thoracic surgery : official journal of the European Association for Cardio-thoracic Surgery 2007
Aron Chakera Philip Boardman

A hemodialysis patient presented with an abnormal CXR (Panel A) 13 years after coronary artery bypass grafting and a CT scan was performed (Panel B). Maximal-intensity-projection (Panel C) and 3D reconstructions (Panel D) revealed a large aneurysm, containing thrombus, arising from the vein graft to his right coronary artery (Fig. 1). Fig. 1. (A) Chest radiograph (PA) showing the abnormal right...

Journal: :iranian endodontic journal 0
amir hosein kiarudi mohammad jafar eghbal yaser safi mohammad mehdi aghdasi mahta fazlyab

by producing undistorted three-dimensional images of the area under examination, cone-beam computed tomography (cbct) systems have met many of the limitations of conventional radiography. these systems produce images with small field of view at low radiation doses with adequate spatial resolution that are suitable for many applications in endodontics from diagnosis to treatment and follow-up. t...

ژورنال: :پژوهشنامه فیزیولوژی ورزشی کاربردی 2013
محمد رحیمی محمد حسین علیزاده رضا رجبی ناصر مهرشاد

محمد رحیمی، دکتر محمد حسین علیزاده، دکتر رضا رجبی، دکتر ناصر مهرشاد چکیده سابقه و هدف: زاویه q به عنوان زاویه حاده بین دو خط فرضی ترسیم شده از خار خاصره قدامی فوقانی به مرکز کشکک و از مرکز کشکک به برجستگی درشت نی تعریف می شود. اندازه گیری زاویه q با استفاده از روش تهاجمی از قبیل؛ رادیوگرافی و سی تی اسکن و روش غیر تهاجمی از قبیل؛ روش گونیامتر و روش فتوگرامتری در وضعیت طاق باز انجام می شود. در ...

Journal: :acta medica iranica 0
bahram samadi rad department of iranian legal medicine organization, tabriz, iran. ali zeinali department of neurosurgery, imam khomeini hospital, school of medicine, tabriz university of medical sciences, tabriz, iran. moslem shakeri bavil department of neurosurgery, imam khomeini hospital, school of medicine, tabriz university of medical sciences, tabriz, iran. fereydun ashrafian general practioner, east azerbaijan legal medicine center, tabriz, iran. mohammad ali daghighi department of neurosurgery, imam khomeini hospital, school of medicine, tabriz university of medical sciences, tabriz, iran.

computed tomography (ct) is now the primary diagnostic method for head trauma because of its ability to demonstrate the nature, extent, sites, and multiplicity of brain injuries. although there have been numerous reports on the ct findings of most types of intracranial injury, the findings in brainstem injury have not been well described. this study aimed at comparing the autopsy findings of br...

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