Computed tomograph - Study guides, Class notes & Summaries

Treatment planning on the transverse, coronal and sagital planes (3D) is accomplished with: A. CT B. MRI C. PET D. Ultrasound E. A & B F. A, B, & C G. A, B, C, & D - correct answers F. A, B, & C A ___ provided the ability to generate high resolution DRR's. - correct answers True virtual simulation Computer tomography (CT) simulation includes both ____ and ___. A. CT scanner B. Dosage calculation computer

Computed Tomography ARRT ( Image Production) correctly answered to pass

Consider the following dose data from three different CT scans. Which procedure has the highest risk of acquiring radiation-induced cancer? A. Procedure 1: Absorbed Dose = 21 mGy, Effective Dose = 11 mSv B. Procedure 2: Absorbed Dose = 80 mGy, Effective Dose = 3 mSv C. Procedure 3: Absorbed Dose = 34 mGy, Effective Dose = 10 mSv D. All risks are equal correct answers A. Procedure 1: Absorbed Dose = 21 mGy, Effective Dose = 11 mSv Procedure 1 has the highest risk of acquiring radiation-ind...

The gantry is the part of the CT scanner that houses what 4 things? - correct answers -Cooling system -Data acquisition system (DAS) -Detectors -X-ray tube - Most generators Three major pieces of equipment in a CT Scanner. - correct answers 1. Imaging system: gantry and patient table 2. Computer capable of processing the CT image data 3. Operator's console- controls the entire imaging process and displays the final image. Gantry - correct answers Large, circular apparatus, ring-shap...

Factors controlling image appearance: - correct answers -artifacts -windowing -noise -resolution Artifact - correct answers - a distortion or error in an image that is unrelated to the subject being studied -CT image artifact is any discrepancy between the reconstructed CT numbers in the image and true attenuation coefficients of the object -artifacts degrade image quality and can cause misdiagnosis -classified according to appearance & cause Streak Artifact - correct answers...

Computed Tomography for Technologists 2nd Edition Exam Review Review questions and answers for CT registry prep. This is from the book "Computed Tomography for Technologists: Exam Review" by Lois E Romans. Published by Wolters Kluwer, Lippincott Williams and Wilkins Latest Update Actual Exam 200 Questions and 100% Verified Correct Answers Guaranteed A+ Verified by Professor

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Which is NOT a synonym for the preliminary/localizer image taken at the start of a CT examination? A. Topogram B. Scout C. Scanogram D. Spiral - Answer- D. Spiral The ability of a system to differentiate, on the image, objects with similar densities is known as: A. High contrast resolution B. Low contrast resolution C. Spatial resolution D. Temporal resolution - Answer- B. Low contrast resolution

CT founded in 1970 by - correct answers Sir Godfrey Hounsfield who Developed the algorithms for the reconstruction of the images? - correct answers Allan Cormack Localizer, also called scanogram, topogram, pilot or survey - correct answers is the 1st C.T image of exam, or scout film Voxel ( 3D tissue element) - correct answers The basic unit of computed tomography reconstruction, represented as a pixel in a computed tomography image display. Translation - correct answers each sweep o...