CT image characteristicsRisk factorNon-contrast CT images-based classification for cerebral venous sinus thrombosisdoi:10.1186/s41016-019-0164-9Baoqiang LianLinsun DaiXueling XieDezhi KangGuorong ChenHuangcheng ShangguanPeisen YaoShufa ZhengChinese Neurosurgical Journal...
for a standard CT scan of the sinus, the reference value was 60 mAs as opposed to the navigation protocol which was 390 mAs. This means that the scanner will set its exposition parameters around these reference values. The larger reference mAs values are associated ...
with a history of a chainsawinjuryto the lower aspect of the anterior chest wall a year ago. he now presents with a draining sinus from the skin wounds at the injury site. a99mtc-hmpao scan was performed to assess forosteomyelitis. there is a focal area of tracer accumulation in the ...
An MR-only RT workflow can be enabled by a two-step implementation process: firstly with a commissioning phase, to test whether the sCT image can perform equally as a CT scan in a clinical environment, and secondly with a validation phase, to develop new workflow guidelines as part of a ...
75571 Computed tomography, heart, without contrast material, with quantitative evaluation of coronary calcium [not covered for serial or repeat calcium scoring] 75572 Computed tomography, heart, with contrast material, for evaluation of cardiac structure and morphology (including 3D image postprocessing, ...
Exemplarily, in one patient the conventional MRI imaging showed no residual tumor growth after resection of an olfactory's meningioma, whereas the additional PET data revealed active tumor mass in the nasal cavity and in the ethmoidal sinus. Therefore a clear enlargement of the CTV (GTV-MRI/CT...
This first step consisted of registering the reconstructed CT-scan image to the real-time microscopic image of the tympanic membrane extracted from the video. From the CT-scan image, fiducial markers were extracted using contrast enhancement and thresholding (Fig. 3(d)). Marker centre points, obt...
contra-indications to iodine contrast medium, including eGFR < 45 ml/min, known contrast allergy; (5) contra-indications to vasodilators, including bronchial asthma, advanced atrioventricular block, sinus node disease, clinically significant carotid artery narrowing, severe aortic stenosis or left ...
Record and observe the clinical baseline data of the patients between the two groups respectively; measure the peak time of the aortic sinus and coronary sinus full filling in the first pass myocardial perfusion cycle of the contrast agent recorded in the CT volume helical shuttle scan mode of ...
Thirty one consecutive patients strongly suspected of severe Middle Cerebral Artery AIS presenting less than 6 h after onset of symptoms or with unknown time of onset of symptoms underwent a standardized CT protocol in spectral mode including Non Contrast CT, mCTA, and Perfusion CT (CTP) on a ...