Mosby's Exam Review for CT Questions and Verified Answers, 100% Guarantee Pass (Latest 2025) 180-dgree linear interpolation (180 LI) - Correct Answers ✅Type of algorith used for MSCT image reconstruction in which data acquired from a shorter distance (180 degrees) away from the reconstructed slice location are interpolated.absorbed dose - Correct Answers ✅the amount of x-ray energy absorbed in a unit of mass. It is measured in grays.(Gy) 360-degree linear interpolation (360 LI) - Correct Answers ✅type of algorithm used for MSCT image reconstruction in which two sets of projection data acquired 360 degress apart are used to form an image at a precise z-axis location.absorptopm efficiency - Correct Answers ✅the ability of an individual CT detector to absorb and measure the transmitted x-ray intensity incident upon it. primarilly controlled by the characteristics and physical makeup of the detector material.adaptive array - Correct Answers ✅the type of MSCT detector array configured with the thinnest detectors at the center, surrounded by detectors of incrementally increasing widths along the z-axis.advanced single-slice rebinning (ASSR) algorithm - Correct Answers ✅cone beam correction algorithm used to 1 / 4
Mosby's Exam Review for CT Questions and Verified Answers, 100% Guarantee Pass (Latest 2025) overcome potential attenuation calculation errors from the divergent beam of MSCT systems.afterglow - Correct Answers ✅the tendency of a scintillation-type CT detector to continue to glow in response to x-radiation after the exposure source has been terminated.Agatston score - Correct Answers ✅quantification of the volume and density of calcium within the coronary arteries.as calculated a CT coronary artery calcification (CAC) examination, the Agatston score is used to indicate a patient's risk of suffering a cardiac event.ALARA - Correct Answers ✅acronym for "as low as reasonably achievable," the cardinal principle of radiation dose reduction for all radiologic procedures, including CT.algorithm - Correct Answers ✅mathematical filter applied to raw data during image reconstruction to remove blurring artifact inherent to back-projection. may also be referred to as kernel.aliasing - Correct Answers ✅a form of streak artifact caused by an isufficient number of views (data samples) obtained during data acquisition. 2 / 4
Mosby's Exam Review for CT Questions and Verified Answers, 100% Guarantee Pass (Latest 2025) analog-to-digital converter - Correct Answers ✅component of the data acquisition system (DAS) responsible for converting the electronic signal emitted by the CT detectors into digital form.archival - Correct Answers ✅the storage of CT data in either hard (film) or soft (digital) form.array processor - Correct Answers ✅component of the CT computer system responsible for receiving raw scan data, performing all of the major processing of the CT image, and returning the reconstructed image to the storage memory of the host computer.arterial phase - Correct Answers ✅period of peak arterial enhancement following the bolus IV administration of iodinated contrast materia. for example, the hepatic arterial phase occurs approximately 25-35 seconds after the initiation of contrast agent administration.Artifact - Correct Answers ✅a form of noise on the CT image resulting from errors during the measurement of transmitted radiation by the detectors.attenuation - Correct Answers ✅the reduction in intensity of a radiation beam as it passes through a substance. 3 / 4
Mosby's Exam Review for CT Questions and Verified Answers, 100% Guarantee Pass (Latest 2025) attenuation coefficient - Correct Answers ✅the value assigned to an object quantifying its ability to attenuate an x- ray beam back-projection - Correct Answers ✅the mathematical process of CT image reconstruction whereby ray sum data are projected back onto a matrix.automatic tube current modulation (ATCM) - Correct Answers ✅CT system software used to adjust mA throughout an acquisition to reduce patient radiation dose to a minimum.beam hardening - Correct Answers ✅the phenomenom whereby low-energy photons are absorbed as the x-ray beam passes through an object, resulting in an increase in the average photon energy of the x-ray beam.beam pitch - Correct Answers ✅the ratio of table feed per gantry rotation to the total collimation used during acquisition with a multi-slice (MSCT) system.beam width - Correct Answers ✅the dimension of the primary beam in the longitudinal z-axis of controlled by the pre-patient collimator.
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