نتایج جستجو برای: computer tomography scan
تعداد نتایج: 795803 فیلتر نتایج به سال:
Endoscopic biopsy from suspicious lesion and Fine needle aspiration cytology from secondary nodal sites are done for histopathological confirmation. Chest X-ray is required to exclude lung metastasis. Contrast-enhanced computed tomography (CECT) scan or Magnetic resonance imaging (MRI) could be used to assess the loco-regional extent of the disease, however MRI is more sensitive but less specif...
Microcracking in composite laminates is a known precursor to the growth of inter-ply delaminations and larger scale damage. Microcracking can lead to the attenuation of ultrasonic waves due to the crack-induced scattering. 3D elastodynamic finite integration technique (EFIT) has been implemented to explore the scattering of ultrasonic waves due to microcracks in anisotropic composite laminates....
Benthic shells are in the broad acoustic category of complex finite-sized shapes for which there is no exact mathematical solution to describe the acoustic scattering. Subsequently, the research program is a combination of theoretical analysis, numerical simulations, laboratory experimentation at WHOI, and comparison between models developed in this program and scattering data collected at sea....
Introduction: Computed tomography is one of the most powerful tools for investigating thorax disease, because it shows progression of lung disease much clearer than chest radiography. Technical advances in CT scanners have led to some abilities for CT scanners such as coverage of larger volume, lower noise and ability for acquiring image in one respiratory phase. However, this will be accompani...
A laboratory sediment sample is digitized by X-ray computed tomography system to obtain a host matrix of size 100 of porosity 0.282. Flow through the porous medium is studied by an interacting lattice gas model for fluid driven by pressure bias. The bias //(0<//^ 1) is implemented via soft and hard pressure constraints in selecting the stochastic movement of fluid particles. The response of flu...
UNLABELLED The chronic nasal obstruction is a common complaint in Otolaryngology outpatients. The diagnosis of nasal obstruction is based on the clinical history, physical examination and diagnostic procedures. Among these, it is already established in the current literature the importance of nasal endoscopy and computer tomography scan. AIM The objective of this research study was based on a...
Introduction: 99mTc-MIBI has been proposed for use as an imaging agent for various tumors, including breast cancer, lung cancer, lymphomas, melanomas and brain neoplastic lesions. Brain tumors are very common and radiotherapy being major part of treatment following surgery. After radiotherapy, deteriorating clinical status can be due to either radiation necrosis or recurrent tumor. Comput...
The coronavirus disease 2019 (COVID-19) pandemic has made test screening much needed. Currently, the most commonly used is swab type. Although in fact, there also a method with chest radiology. purpose of this study to develop COVID-19 early detection system based on X-ray images patient's thorax form computer-aided diagnosis. This case fact that modalities are available several health care cen...
a 50-year-old male underwent a check-up for an insurance company. chest x-ray revealed a large ball-like lesion in the posterior mediastinum. the finding was confirmed by computed tomography (ct) scan (figure 1). the patient was referred to our center, where he had a successful mass removal surgery (figure 2). pathology identified the mass as neurinoma.
Vestibular schwannoma is the most common tumor of the posterior fossa of the skull. Patients referred with the primary otologic symptoms such as hearing loss, tinnitus, vertigo, imbalance, and the cranial nerve palsy. Thirty-three patients were operated and treated by a team of otolaryngologist and neurosurgeon, anudiometrist, and internist. Patients'chiefcomplaint was due to 94% hearing loss a...
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