2016 AAPM Annual Meeting
Back to session list

Session Title: Imaging Informatics
Question 1: You are running an observer study comparing gross tumor outlines of brain lesions treated with stereotactic radiosurgery. In your study design you decide that even brief detours into normal tissue could have adverse results and so want to capture these “spikes”. Which of the below metrics would best capture this data?
Reference:Babalola KO, Patenaude B, Aljabar P, et al. An evaluation of four automatic methods of segmenting the subcortical structures in the brain. NeuroImage 47, 2009.
Choice A:Average Distance.
Choice B:Hausdorff Distance.
Choice C:Dice Coefficient.
Choice D:Jaccard Coefficient.
Question 2: What is the problem with using only two observers when performing ROC analysis?
Reference:Shirashi J, Pesce LL, Metz CE, Doi K. Experimental Design and Data Analysis in Receiver Operating Characteristic Studies: Lessons Learned from Reports in Radiology from 1997 to 2006, Radiology 253(3): 2009.
Choice A:The results are not generalizable to the larger population.
Choice B:There is not enough data to construct the ROC curve.
Choice C:The AUC could be negative because of conflicting data.
Choice D:Readers might agree exactly and thus an ROC curve could not be constructed.
Question 3: The certifying body for Imaging Informatics is the...
Reference:M Raymond, PG Nagy.  Developing and verifying the psychometric integrity of the certification examination for imaging informatics professionals. - Journal of digital imaging, 2010
Choice A:Society of Imaging Informatics in Medicine.
Choice B:The American Board of Imaging Informatics.
Choice C:The American Board of Radiology.
Choice D:The American Medical Informatics Association.
Question 4: What are two areas of training in informatics that are not as common in Medical Physics training?
Reference:Kulikowski, CA, Shortliffe, EH, et al. (2012). AMIA Board white paper: definition of biomedical informatics and specification of core competencies for graduate education in the discipline. JAMIA. 19: 931-938.
Choice A:Biomedical science and computer science.
Choice B:Statistics and biomedical science.
Choice C:Clinical science and computer science.
Choice D:Library science and management science.
Question 5: Gray tracking in medical color displays compares the measured chromaticity to a target white point in what CIE color space units;
Reference:Michael Flynn:Standards Support for Color in Medical Imaging
Choice A:X, Y, Z
Choice B:u’,v’
Choice C:L*,a*,b*
Choice D:D,K,L
Question 6: Color monitors are commonly calibrated so that the Red, Green, and Blue primary colors match a defined color space. The most frequently used color space for pseudo-color presentations is currently;
Reference:Michael Flynn:Standards support for color in Medical Imaging
Choice A:aRGB
Choice B:sRGB
Choice C:iRGB
Choice D:mRGB
Back to session list