نتایج جستجو برای: coronal ct scan

تعداد نتایج: 192609  

Journal: :International Journal of Otolaryngology and Head & Neck Surgery 2022

Superior semicircular canal dehiscence (SSCD) is a rare entity recently described whose typical clinical symptomatology represented by dizziness triggered variation of pressure. We reported case SSCD which was diagnosed thanks to computed tomography (CT) scan the petrous bone conducted systematically in front mixed deafness with normal eardrum. The bilateral and revealed on left side perception...

Journal: :AJNR. American journal of neuroradiology 2015
S Leng F E Diehn J I Lane K K Koeller R J Witte R E Carter C H McCollough

BACKGROUND AND PURPOSE Radiation dose in temporal bone CT imaging can be high due to the requirement of high spatial resolution. In this study, we assessed whether CT imaging of the temporal bone by using an ultra-high-resolution scan mode combined with iterative reconstruction provides higher spatial resolution and lower image noise than a z-axis ultra-high-resolution mode. MATERIALS AND MET...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز 1378

در علم پزشکی جهت تشخیص بسیاری از بیماریها از تصاویر رادیولوژی استفاده می شود. تصویربرداری با ct-scan, mri از جمله روشهایی هستند که اخیرا مورد استفاده قرار گرفته اند. با توجه به اینکه تصاویر بدست آمده از مقطع مورد نظر به صورت دوبعدی می باشند و همواره در تشخیص بسیاری از بیماریها ممکن است پزشک معالج را دچار خطا کنند، لذا ارائه روشهایی جهت ساخت تصاویر سه بعدی اعضای داخلی بدن از این تصاویر دوبعدی می...

Journal: :Diagnostic radiology and radiotherapy 2018

Journal: :Stroke 1985
H Kobayashi M Hayashi H Kawano Y Handa J Nozaki S Yamamoto H Matsuda

Twenty patients with stroke were studied for cerebral blood perfusion abnormalities using N-isopropyl I-123 p-iodoamphetamine (IMP) and rotating dual gamma camera emission computed tomography (ECT). After a single scan, multiple transverse, coronal and sagittal section images were reconstructed with a minicomputer. In eighteen patients, we determined the values of regional cerebral blood flow (...

2005
HIDENORI KOBAYASHI MINORU HAYASHI YUJI HANDA JUNICHI NOZAKI HIROSHI MATSUDA

Twenty patients with stroke were studied for cerebral blood perfusion abnormalities using N-isopropyl 1-123 p-iodoamphetamine (IMP) and rotating dual gamma camera emission computed tomography (ECT). After a single scan, multiple transverse, coronal and sagittal section images were reconstructed with a minicomputer. In eighteen patients, we determined the values of regional cerebral blood flow (...

Journal: :AJNR. American journal of neuroradiology 1990
M Shah J S Ross

Fig. 1.-A, Noncontrast CT scan shows vague area of increased attenuation adjacent to head of right caudate nucleus (arrow). B, Coronal T1-weighted (700/ 20/ 4) MR image shows area of decreased signal in white matter adjacent to, and extending into, head of right caudate nucleus (arrow). C, Axial T1-weighted (600/ 20) postcontrast MR image shows no significant contrast enhancement (arrow). D, Ax...

Journal: :asia oceania journal of nuclear medicine and biology 0
mai hong son department of nuclear medicine, tran hung dao hospital, hanoi, vietnam bui quang bieu department of nuclear medicine, tran hung dao hospital, hanoi, vietnam le ngoc ha department of nuclear medicine, tran hung dao hospital, hanoi, vietnam

objective(s): in clinical practice, approximately 10-25% of post-surgical differentiated thyroid carcinoma (dtc) patients with high serum thyroglobulin (tg) and negative 131i whole-body scan (wbs) have poor prognosis due to recurrent or metastatic lesions after radioactive iodine treatment. the purpose of this study was to evaluate the value of 18f-fdg pet/ct scan in dtc patients with high seru...

Journal: :AJNR. American journal of neuroradiology 2011
Y T Niu M E Olszewski Y X Zhang Y F Liu J F Xian Z C Wang

BACKGROUND AND PURPOSE MDCT has some specific scan parameters that may systematically increase or decrease radiation dose to patients. This study explored the scan protocol parameters that impact radiation dose in temporal bone MDCT and determined the optimal scan parameters that balance radiation dose with diagnostic image quality. MATERIALS AND METHODS Using exsomatized cadaveric heads, tra...

Journal: :African health sciences 2006
Mohamed M Radwan Fikri M Abu-Zidan

BACKGROUND Diagnosis of blunt abdominal trauma is a real challenge even for experienced trauma surgeons. Diagnostic tools that help the treating doctor in optimum management of blunt abdominal trauma include; Focussed Assessment Sonography for Trauma (FAST), Diagnostic peritoneal lavage (DPL) and CT scan. OBJECTIVES the aim of this communication is to define the recent role of FAST and CT sca...

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