Recent developments in colorectal imaging.
OBJECTIVE
The aim of this review is to provide an update on important recent advances in radiologic colorectal imaging, with emphasis on detection, staging, and surveillance of colorectal neoplasia.


RESULTS
Colorectal imaging advances with magnetic resonance (MR), computed tomography colonography (CTC), and positron emission tomography (PET) over the past year or so have been substantial. Progress in MRI for rectal cancer was most notable in terms of assessment of response to neoadjuvant therapy. Continued maturation and clinical validation of CTC was observed for the evaluation of advanced neoplasia, among other areas. Multimodality approaches to colorectal imaging that incorporate functional PET data have also made impressive strides forward.


CONCLUSIONS
Recent advances in cross-sectional and functional radiologic imaging of the colorectum will positively impact the clinical capabilities for noninvasive evaluation of colorectal neoplasia.
Department of Radiology, University of Wisconsin School of Medicine & Public Health, Madison, Wisconsin, USA.
Perry J
PJ
Pickhardt
D023881:Colonography, Computed Tomographic / Q000379:methods / Q000639:trends; D015179:Colorectal Neoplasms / Q000175:diagnosis*; D003952:Diagnostic Imaging / Q000379:methods / Q000639:trends*; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000379:methods / Q000639:trends; D049268:Positron-Emission Tomography / Q000379:methods / Q000639:trends