CT Boot Camp Graded A+

CT Boot Camp Graded A+ -1000 ️HU Air -700 ️HU lung -50 ️HU fat 0 ️HU water 15 ️HU CSF 30-45 ️HU blood 40 ️HU muscle 100-400 ️HU calcification 1000 ️HU bone increasing ️A decrease in brightness is a result of _____ the window level image noise ️Using edge-enhanced images for volume rendering is expected to result in: smoothing ️Volume rendered images should always be created with ____ algorithms noise ️Image ____ is the most important factor influencing contrast resolution in CT 2-8 ️The range of serum iodine concentration for adequate tissue opacification during contrast enhanced CT exams is ___ mg/mL decreases ️MSAD ___ when slice thickness is less than the bed index increases ️MSAD ___ when slice thickness is greater than image spacing beam hardening ️CTDIq is a weighted index that approximates radiation dose on the basis of variations that ocurr acress the FOV because of overranging ️Adaptive collimation may be utilized to reduce the unnecessary radiation exposure at the start and end of a helical acquisition that may be referred to as pitch ️the weighted CTDIw can be converted into CTDIvol that is useful for estimating patient dose during helical acquisitions by dividing the CTDIw by the tarsals, metatarsals ️the Lisfranc joint is the articulation between the __ and the ___ agaston ️the ___ scoring system quantifies the volume and density of calcium within the coronary arteries cerebral blood flow (CBF) ️during CT perfusion studies, the quantity of blood flow that moves through 100g of tissue each minute is called projection ️A single "view" acquired during a CT scan is also called a: increase ️a decrease in WL, causes a ___ in brightness Gerota's fascia ️The kidneys are located in the retroperitoneum and are bound by a band of fibrous connective tissue called: 35-45 ️after initiation of rapid bolus administration of iodinated contrat material, the pancreatic phase of contrast enhancement occurs at approximately ____ seconds superior vena cava ️CT a contrast enhanced CT of the chest, streakng artifact mat obscure portions of the superior mediastinum because of dense concentrations of iodine in the z-filtering ️The mathematical process that allows MDCT images to be reconstructed at any point along the acquired volume is commonly referred to as: rotate-stationary ️Fourth-generation CT scanners use a _______ tube-detector configuration. -rotate-translate -electron beam-stationary -rotate-stationary -rotate-rotate aliasing artifact ️Which of the following is considered an equipment-induced CT image artifact? -step artifact -metallic artifact -cupping artifact -aliasing artifact constant mAs ️During CT x-ray exposure, the product of the selected mA setting and the scan time