Like other X-ray imaging exams, CT scans expose you briefly to a small, targeted amount of ionizing radiation, The amount of radiation you're exposed to during a CT scan varies, depending on how much of your body is scanned. Generally, the amount of radiation you're exposed to during ea...
CT scans to predict severity. We then construct the multimodal AI-severity score that includes 5 clinical and biological variables (age, sex, oxygenation, urea, platelet) in addition to the deep learning model. We show that neural network analysis of CT-scans brings unique prognosis information,...
The tumour bed target is defined during radiotherapy treatment planning using a computed tomography (CT) scans of the patient, usually in the supine position. A major challenge in PBI is the daily, or weekly, change in position, size and shape of the target region, which may lead to ...
California's governor has signed tough new legislation tightening oversight of diagnostic CT scans, largely in response to the overdosing of hundreds of patients who underwent brain scans for stroke in 2008 and 2009. Gov. Arnold Schwarzenegger signed a bill on Wednesday that will require hospitals ...
The reason of choosing a green LED as the light source is explained in Appendix A. The photodetector array has 64 photo diodes evenly distributed along a length of 5 cm. The LED, the photodetector array and the water bath are Sensors 2018, 18, 191 4 of 10 2.3. Experimental Setup Figure...
In some cases, the use of both CT scans and MRI may add value to the characterization of the mass; in selected cases, lesion-to-cortex attenuation, and aorta–lesion–attenuation difference (ALAD) on CT were shown to be helpful in differentiating oncocytoma from clear-cell RCC [22]. In ...
With regards to the dose metrics of head scans, the CTDIvol-based local DRLs for MDCT64 is higher than those for MDCTH (Table 1), but the DLP-based local DRLs for MDCT64 is lower than those for MDCTH (Table 2). This could be explained by the longer scan length used in MDCTH ...