نتایج جستجو برای: 3d ct scan
تعداد نتایج: 358332 فیلتر نتایج به سال:
Background and purpose: Proper diagnosis of patients with COVID-19 is one of the challenges in medical centers. RT-PCR is the standard and reference test in diagnosis of patients with COVID-19. This study aimed at accelerating the correct diagnosis of COVID-19 and the diagnostic power of chest CT scan and RT-PCR. Materials and methods: This study was performed in 569 patients with COVID-19 adm...
Background: CT scan is one of the routine modalities in diagnosis of the pelvic fractures. An unanswered question is if CT scan can alter treatment plane of these fractures? Methods: At first, radiographs of 100 patients with fracture of the pelvic ring were evaluated by one surgeon and type of the fracture according to Young and Burgess classification and treatment plane (surgical or non-su...
INTRODUCTION The aim of this study was to assess if the complex anatomy of aortic aneurysm and aortic dissection can be accurately reproduced from a contrast-enhanced computed tomography (CT) scan into a three-dimensional (3D) printed model. METHODS Contrast-enhanced cardiac CT scans from two patients were post-processed and produced as 3D printed thoracic aorta models of aortic aneurysm and ...
This paper presents an analysis of the algorithms used for generating 3D structures from 2D CT-Scan Datasets. This is achieved by developing an implementation of Marching Cubes, a surface construction algorithm that’s currently the standard used for 3D surface construction in the medical visualization industry.
Innovation/Impact: 4D-CT simulation has been widely used to estimate the respiratory motion of lung tumors and abdominal tumors for radiotherapy planning. However, most abdominal tumors (liver, pancreas etc.) cannot be readily visualized in CT without dynamic CE. It is desirable to combine a 4D-CT without CE and a CE 3D-CT into a CE 4D-CT so that we can both visualize the tumor and estimate its...
A C-arm equipped with a flat detector CT (C-arm CT) has been developed, which provides images with high spatial resolution that could facilitate effective 3D information during interventional procedures. The cone beam reconstructive method was applied for reconstruction of images. Time of reconstruction of 3D images was approximately one minute after the scan. The axial thin-slice images, the r...
background focused assessment with sonography for trauma (fast) is a precise, non-invasive, and low cost method to assess free abdominal fluid in trauma patients. objective this study assessed the relationship between free intra-abdominal fluid and organ injury in blunt abdominal trauma and designed a scoring system based on fast. patients and methods a total of 200 patients with blunt abdomina...
trauma is the leading cause of death in united states in the younger population. cardiac trauma is common following blunt chest injuries and is associated with high morbidity and mortality. this study discusses various multidetector computed tomography (mdct) findings of cardiac trauma. cardiac injuries are broadly categorized into the most commonly occurring blunt cardiac injury and the less c...
various dimensions of the human vestibular aqueduct were evaluated in two groups, patient and control, and these measurements were compared. both groups were examined clinically, followed by audiometric evaluation and temporal bone high resolution ct scan. it was found that in approximately one third of the patient group (with idiopathic snhl), the vestibular aqueduct was 1.5 mm or larger. also...
background and aims: one of the most common injuries around the world is the traumatic injury of the spine and spinal cord with unknown worldwide situation of traumatic spinal cord injury (tsci) affecting on the effectiveness of preventive policy programs. in addition, because of possibility of making paralysis, the potential injury to the spine could be one of the most important traumas and a ...
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