2017 AAPM Annual Meeting
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Session Title: Computed Tomography Imaging: From the Order to Dose Monitoring and Review
Question 1: The Defined procedure protocol described in DICOM Supplement 121 is:
Reference:Supanich, MP: Computed Tomography Imaging Operation, CT and MRI of the Whole Body (Eds Haaga JR and Boll DT). Volume 1 pp 31-44, 2016.
Choice A:A generalized description of acquisition parameters for a CT Procedure.
Choice B:A look up table between procedure codes and protocols as required by TJC.
Choice C:A patient-specific description of planned acquisition parameters for a CT Procedure.
Choice D:A description of the acquisition parameters used to perform a CT Procedure.
Question 2: The use of Radlex Playbook IDs to identify protocols aids in which of the following?
Reference:Morin RL, Seibert JA, Boone JM: Radiation dose and safety: Informatics standards and tools. J Am Coll Radiol 11:1286-1297, 2014.
Choice A:Demonstration of compliance with CMS requirements for billing.
Choice B:Validation of technologist adherence to protocol.
Choice C:Comparison of radiation dose indices from protocols at different institutions or on different scanners.
Choice D:Implementation of decision support in order entry.
Question 3: Which 3 image quality metrics should be targeted to produce similar image quality across different brands and models of CT scanners?
Reference:Favazza CP, Duan X, Zhang Y, et al: A cross-platform survey of CT image quality and dose form routine abdomen protocols and a method to systematically standardize image quality. Phys Med Biol 60:8381-8397, 2015.
Choice A:Spatial Resolution, Tomographic Section Thickness, and CTDIvol.
Choice B:Spatial Resolution, Tomographic Section Thickness, and Standard Deviation of Noise.
Choice C:Spatial Resolution, Detector Configuration, and CTDIvol.
Choice D:Spatial Resolution, CTDIvol, and Standard Deviation of Noise.
Question 4: The AAPM practice guideline on CT protocol management and review reccomends which set of adult CT protocols be reviewed annually?
Reference:Cody DD, Fisher TS, Gress DA, et al: AAPM Medical Physics Practice Guideline 1.a: CT protocol management and review practice guideline. J Appl Clin Med Phys 14:3-12, 2013.
Choice A:Head, Abdomen, High Res Chest, and Brain Perfusion.
Choice B:Head, Abdomen, and Chest.
Choice C:Trauma, Abdomen, and Brain Perfusion.
Choice D:Head, Multi-phase Liver, and Brain Perfusion.
Question 5: Pediatric Diagnostic Reference Ranges (DRR’s) should be based on a patient’s:
Reference:• Strauss K.J., Goske M.J., Towbin A.J., Sengupta D., Callahan M.J., Darge K., Podberesky D.J., Frush D.P., Maxfield C., Westra S.J., Prince J.S., Wu H., Bhargavan-Chatfield M. Pediatric Chest CT Diagnostic Reference Ranges: Development and Application. Radiology. 2017 (epub ahead of print). • Goske M.J., Strauss K.J., Coombs L.P., Mandel K.E., Towbin A.J., Larson D.B., Callahan M.J., Darge K., Podberesky D.J., Frush DP, Westra S.J., Prince J.S. Diagnostic Reference Ranges for Pediatric Abdominal CT. Radiology. 2013;268(1):1010-1017.
Choice A:Age.
Choice B:Weight.
Choice C:Effective diameter.
Choice D:Body-mass index.
Question 6: Which of the following will NOT reduce a truncation artifact?
Reference:• Fursevich, D.M., LiMarzi, G.M., O'Dell, M.C., Hernandez, M.A., Sensakovic, W.F., Bariatric, C.T. Imaging: challenges and solutions. Radiographics. 2016;36:1076–1086. • Modica, M.J., Kanal, K.M., Gunn, M.L. The obese emergency patient: imaging challenges and solutions. Radiographics. 2011;31:811–823. • Glanc P, O’Hayon BE, Singh DK, Bokhari SAJ, Maxwell CV. Challenges of pelvic imaging in obese women. Radiographics. 2012; 32: 1839–62.
Choice A:Bundling the patient.
Choice B:Increasing the SFOV.
Choice C:Increasing the DFOV.
Choice D:None of the above.
Question 7: A goal of the Image Gently & Image Wisely campaigns is:
Reference:• Fernandes, K., Levin, T.L., Miller, T., Schoenfeld, A.H., Amis, E.S. Bariatric, C.T. Evaluating an Image Gently and Image Wisely Campaign in a Multihospital Health Care System. JACR. 2016;13:1010-1017. • http://www.imagegently.org/About-Us/Campaign-Overview • http://www.imagewisely.org/About-Us • http://www.choosingwisely.org/about-us/
Choice A:To eliminate exams that employ ionizing radiation.
Choice B:To standardize radiation dose due to imaging,nationwide.
Choice C:To raise awareness of opportunities to lower radiation dose.
Choice D:To reduce repeat rates for all imaging exams.
Question 8: In The Joint Commission’s “Diagnostic Imaging Requirements” release, which of the following must be a part of a CT imaging protocol?
Reference:www.jointcommission.org/assets/1/18/AHC_DiagImagingRpt_MK_20150806.pdf
Choice A:Radiation Dose Index Average
Choice B:Radiation Dose Index Median
Choice C:Expected Image Noise Level
Choice D:Expected Dose Index Range
Question 9: Tube current modulation schemes follow one of three basic methods. Which of the following is NOT one of these methods?
Reference:RadioGraphics 2008; 28:1451–1459 • Published online 10.1148/rg.285075075
Choice A:Patient-size AEC.
Choice B:Patient-gender AEC.
Choice C:Z-axis AEC.
Choice D:Angular AEC.
Question 10: Which one of the following states explicitly requires that the "radiology report of a CT study shall include the dose of radiation by either recording the dose within the patient's radiology report or attaching the protocol page that includes the dose of radiation"?
Reference:• Radiation Control: Health Facilities and Clinics, SB1237, February 19, 2010. http://www.leginfo.ca.gov/pub/09-10/bill/sen/sb_1201-1250/sb_1237_bill_20100929_chaptered.html Accessed April 7, 2017.
Choice A:California.
Choice B:North Carolina.
Choice C:Indiana.
Choice D:Illinois.
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