Charles Daniel Johnson is an American radiologist. Johnson graduated from the College of Idaho with a degree in zoology. He subsequently studied medicine at Mayo Medical School, where he later completed medical residencies in internal medicine and diagnostic radiology. Johnson pursued a master's degree in diagnostic radiology from the University of Minnesota, followed by a fellowship and research training at

Duke University Duke University is a private research university in Durham, North Carolina. Founded by Methodists and Quakers in the present-day city of Trinity in 1838, the school moved to Durham in 1892. In 1924, tobacco and electric power industrialist James ...

. Johnson holds a second master's degree in medical management from

Carnegie Mellon University Carnegie Mellon University (CMU) is a private research university in Pittsburgh, Pennsylvania. One of its predecessors was established in 1900 by Andrew Carnegie as the Carnegie Technical Schools; it became the Carnegie Institute of Technology ...

. He is a professor of radiology and consultant to the Mayo Clinic Alix School of Medicine Department of Radiology. In February 2014, Johnson became editor-in-chief of the journal ''Abdominal Imaging'', succeeding Morton Meyers. During Johnson's tenure as chief editor, the journal was renamed ''

Abdominal Radiology ''Abdominal Radiology'' is a monthly peer-reviewed medical journal published by Springer Science+Business Media and an official journal of the Society of Abdominal Radiology. According to the ''Journal Citation Reports'', the journal has a 2021 im ...

'' in January 2016. Johnson has studied the effectiveness of virtual colonoscopy (colon cancer screening using

CT scan A computed tomography scan (CT scan; formerly called computed axial tomography scan or CAT scan) is a medical imaging technique used to obtain detailed internal images of the body. The personnel that perform CT scans are called radiographers ...

s) as compared to

colonoscopy Colonoscopy () or coloscopy () is the endoscopic examination of the large bowel and the distal part of the small bowel with a CCD camera or a fiber optic camera on a flexible tube passed through the anus. It can provide a visual diagnosis (''e. ...

. He said virtual colonoscopy finds 90% of large, precancerous polyps but is less successful with smaller ones.

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* * * {{DEFAULTSORT:Johnson, C. Daniel American radiologists Living people College of Idaho alumni Medical journal editors Carnegie Mellon University alumni University of Minnesota alumni Mayo Clinic people Year of birth missing (living people)