Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 3 of 3 for “"CTDI"”.
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CONE BEAM COMPUTED TOMOGRAPHY (CBCT) DOSIMETRY: MEASUREMENTS AND MONTE CARLO SIMULATIONS
… for CBCT. Computed tomography dose index (CTDI), a standardized metric in conventional CT dosimetry, or direct organ dose measurements have been limitedly used in the CBCT dosimetry.</p> <p>This dissertation investigated the CBCT dosimetry from the CTDI method to the organ, effective dose, …
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Characterization of Low Density Intracranial Lesions Using Dual-Energy Computed to mography
… ability was shown to improve with increasing CTDI<sub>vol</sub>, image thickness and lesion size. Using an optimized protocol, intracranial lesions were correctly classified with over 90% confidence down to a minimum attenuation of 56 HU, representing a significant improvement beyond the 100 …
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In-Vivo Ct Dosimetry During Virtual Colonoscopy
<p>Virtual colonoscopy (VC) is a minimally invasive means for identifying colorectal polyps and colorectal lesions by insufflating a patient’s bowel, applying contrast agent via rectal catheter, and performing multi-detector computed tomography (MDCT) scans. The technique is recommended for colonic …