نتایج جستجو برای: computed tomography iterativeimage reconstruction

تعداد نتایج: 377600  

Journal: :international journal of pediatrics 0
mahdi gholami oral and maxillofacial diseases research center, faculty of dentistry, mashhad university of medical sciences, mashhad, iran.

background mandibular continuity defects occur after tumor resection, maxillofacial injury, or osteomyelitis. despite the current availability of a plethora of treatment modalities, bone substitutes, and various clinical adjuncts, an exact reconstructive recapitulation of large bony defects continues to be beyond reach. in this clinical pilot study, we report a novel method for reconstruction o...

Journal: :Hong Kong medical journal = Xianggang yi xue za zhi 2010
Shiobhon Y Luk John L Y Leung M L Cheung S So S H Fung Sunny C S Cheng

Torsion of the nongravid uterus is a rare but potentially fatal acute abdominal condition. The non-specific clinical presentation of this condition makes preoperative diagnosis difficult. We describe a patient with uterine torsion in whom the diagnosis was made using contrast-enhanced computed tomography with multiplanar reconstruction. Features of uterine torsion and its complications can be d...

Journal: :iranian journal of radiology 0
chih-chen chang department of medical imaging and intervention, chang gung memorial hospital, chang gung university, linkou, taiwan yon-cheong wong department of medical imaging and intervention, chang gung memorial hospital, chang gung university, linkou, taiwan; department of medical imaging and intervention, chang gung memorial hospital, chang gung university, linkou, taiwan cheng-hsien wu department of medical imaging and intervention, chang gung memorial hospital, chang gung university, linkou, taiwan huan-wu chen department of medical imaging and intervention, chang gung memorial hospital, chang gung university, linkou, taiwan li-jen wang department of medical imaging and intervention, chang gung memorial hospital, chang gung university, linkou, taiwan yu-hsien lee department of medical imaging and intervention, chang gung memorial hospital, chang gung university, linkou, taiwan

conclusion attending radiologists could diagnose acute appendicitis accurately on ne-ldct. performance of senior residents on ne-ldct is better than junior residents and comparable to attending radiologists. results diagnostic performances for acute appendicitis were not statistically different for attending radiologists at both examinations. better performance was noted on the ce-sdct with a b...

Journal: :iranian journal of otorhinolaryngology 0
amin rahpeyma oral and maxillofacial diseases research center, school of dentistry, mashhad university of medical sciences, mashhad, iran. saeedeh khajehahmadi dental research center, school of dentistry, mashhad university of medical sciences, mashhad, iran. parvin amini dental material research center ,school of dentistry, mashhad university of medical sciences, mashhad, iran.

introduction: knowledge of the presence of the alveolar antral artery in the lateral maxillary sinus wall is essential for surgeons who operate in this region. the purpose of this study was to investigate the correlation between alveolar antral artery diameter and lateral maxillary bony wall thickness in dentate patients.   materials and methods: thirty five cone-beam computed tomography (cbct)...

Journal: :iranian journal of radiology 0
ismail uzun department of endodontics, faculty of dentistry, ondokuz mayis university, samsun, turkey kaan gunduz department of dentomaxillofacial radiology, faculty of dentistry, ondokuz mayis university, samsun, turkey peruze celenk department of dentomaxillofacial radiology, faculty of dentistry, ondokuz mayis university, samsun, turkey hakan avsever department of dentomaxillofacial radiology, gulhane military medical academy (gata), ankara, turkey kaan orhan department of dentomaxillofacial radiology, faculty of dentistry, ankara university, ankara, turkey; department of dentomaxillofacial radiology, faculty of dentistry, near east university, mersin, turkey gozde canitezer department of dentomaxillofacial radiology, faculty of dentistry, ondokuz mayis university, samsun, turkey; department of dentomaxillofacial radiology, faculty of dentistry, ondokuz mayis university, samsun, turkey. tel: +90-3623121919, fax: +90-3624576032

conclusion no significant differences were found among observers or voxel sizes, with high az results reported for all groups. results no significant differences were found among observers or voxel sizes, with high average z (az) results being reported for all groups. both intra- and inter-observer agreement values were relatively better for 3d accuitomo 170 images than the images from newtom 3...

Journal: :journal of biotechnology and health sciences 0
maryam tofangchiha department of oral radiology, dental faculty, qazvin university of medical sciences, qazvin, ir iran faraz arianfar department of oral radiology, dental faculty, qazvin university of medical sciences, qazvin, ir iran mahin bakhshi department of oral medicine, dental faculty, shahid beheshti university of medical sciences, tehran, ir iran mansour khorasani department of oral and maxillofacial surgery, dental faculty, qazvin university of medical sciences, qazvin, ir iran; department of oral and maxillofacial surgery, dental faculty, qazvin university of medical sciences, qazvin, ir iran. tel: +98-2813353061

background cone beam computed tomography (ct) has recently become effective for oral and maxillofacial imaging. objectives the aim of this study was to assess the knowledge of dentists regarding cone beam computed tomography. materials and methods in this descriptive cross sectional study, a questionnaire regarding cone-beam computed tomography (cbct) was distributed amongst 100 dentists (gener...

Journal: :iranian red crescent medical journal 0
marzieh motevalli department of radiology, shahid rajaie cardiovascular, medical and research center, iran university of medical sciences, tehran, ir iran hossein ghanaati department of radiology, advanced diagnostic and interventional radiology research center (adir), tehran university of medical sciences, tehran, ir iran kavous firouznia department of radiology, advanced diagnostic and interventional radiology research center (adir), tehran university of medical sciences, tehran, ir iran jalal kargar department of radiology, imam khomeini hospital, tehran university of medical sciences, tehran, ir iran mounes aliyari ghasabeh advanced diagnostic and interventional radiology research center (adir), tehran university of medical sciences, tehran, ir iran; advanced diagnostic and interventional radiology research center (adir), edical imaging center, imam khomeini hospital, keshavarz blvd., tehran, ir iran. tel: +98-2166581579, fax: +98-2166581578 mona shahriari advanced diagnostic and interventional radiology research center (adir), tehran university of medical sciences, tehran, ir iran

objectives to evaluate predictive value of vessel specific coronary artery calcium (cac) score in predicting obstructive coronary artery disease. patients and methods in this diagnostic test study we evaluated patients with coronary computed tomography angiography (ccta) and cac score which had been referred to two referral radiology center in tehran, iran and finally we selected 2525 patients ...

Journal: :medical journal of islamic republic of iran 0
ebrahim razi from the department of internal medicine, kashan university of medical sciences, kashan, islamic republic of iran. tahereh khamehchian

tracheobronchopathia osteochondroplastica (to) is a rare and usually benign disorder affecting the trachea and occasionally the bronchi. a case of to was diagnosed in a 61 year old male farmer presenting with pulmonary infections and prolonged productive cough. a bronchoscopy revealed multiple nodular excrescences aong the anterolateral wall of the trachea and main bronchi. ct scans showed mode...

Journal: :archives of cardiovascular imaging 0
agnieszka mlynarska unit of noninvasive cardiovascular diagnostics, medical university of silesia, katowice, poland; unit of internal nursing, medical university of silesia, katowice, poland; division of cardiology, medical university of silesia, katowice, poland; unit of noninvasive cardiovascular diagnostics, unit of internal nursing and department of electrocardiology, upper silesian cardiology center, medical university of silesia, katowice, poland. tel: +48-32606484161, fax: +48-32322524098 rafal mlynarski unit of noninvasive cardiovascular diagnostics, medical university of silesia, katowice, poland; unit of internal nursing, medical university of silesia, katowice, poland maciej sosnowski unit of noninvasive cardiovascular diagnostics, medical university of silesia, katowice, poland; department of electrocardiology, upper silesian cardiology center, katowice, poland

conclusions in most cases, the conus artery can be visualized in cardiac ct. a description of the conus artery should be a part of the standard clinical coronary ct angiography description. objectives to examine whether it is possible to visualize the conus artery in multi-slice computed tomography (ct). patients and methods in 79 consecutive patients (aged 56 ± 12.9 years; 13 women), 64-slice ...

Journal: :journal of dentomaxillofacil radiology, pathology and surgery 0
faegheh gholinia department of orthodontics, guilan university of medical sciences, dental school, rasht, iran zahra dalili department of oral maxillofacial radiology, guilan university of medical sciences, dental school, rasht, iran azam nahvi department of pediatric dentistry, tehran university of medical sciences dental school, tehran, iran ali khalighi sigaroudi department of oral maxillofacial surgery, guilan university of medical sciences, dental school, rasht, iran

introduction: a study model is a precise three dimensional replica of patient’s dentition and plays an important role in treatment planning. many digital multi-media applications have become available to the clinician and his or her staff to facilitate standard procedures in practice and management. the aim of this study is to evaluate reliability and validity of dental measurement made on digi...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید