TY - JOUR
T1 - Rectal imaging
T2 - Part 1, high-resolution MRI of carcinoma of the rectum at 3 T
AU - Halappa, Vivek Gowdra
AU - Villalobos, Celia Pamela Corona
AU - Bonekamp, Susanne
AU - Gearhart, Susan L.
AU - Efron, Jonathan
AU - Herman, Joseph
AU - Kamel, Ihab R.
PY - 2012/7
Y1 - 2012/7
N2 - OBJECTIVE. MRI is currently the imaging modality of choice for the detection, characterization, and staging of rectal cancer. A variety of examinations have been used for preoperative staging of rectal cancer, including digital rectal examination, endorectal (endoscopic) ultrasound, CT, and MRI. Endoscopic ultrasound is the imaging modality of choice for small and small superficial tumors. MRI is superior to CT for assessing invasion to adjacent organs and structures, especially low tumors that carry a high risk of recurrence. CONCLUSION. High-resolution MRI is an accurate and sensitive imaging method delineating tumoral margins, mesorectal involvement, nodes, and distant metastasis. In this article, we will review the utility of rectal MRI in local staging, preoperative evaluation, and surgical planning. MRI at 3 T can accurately delineate the mesorectal fascia involvement, which is one of the main decision points in planning treatment.
AB - OBJECTIVE. MRI is currently the imaging modality of choice for the detection, characterization, and staging of rectal cancer. A variety of examinations have been used for preoperative staging of rectal cancer, including digital rectal examination, endorectal (endoscopic) ultrasound, CT, and MRI. Endoscopic ultrasound is the imaging modality of choice for small and small superficial tumors. MRI is superior to CT for assessing invasion to adjacent organs and structures, especially low tumors that carry a high risk of recurrence. CONCLUSION. High-resolution MRI is an accurate and sensitive imaging method delineating tumoral margins, mesorectal involvement, nodes, and distant metastasis. In this article, we will review the utility of rectal MRI in local staging, preoperative evaluation, and surgical planning. MRI at 3 T can accurately delineate the mesorectal fascia involvement, which is one of the main decision points in planning treatment.
KW - 3-T MRI
KW - Rectal cancer
KW - Tumor staging
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U2 - 10.2214/AJR.11.8134
DO - 10.2214/AJR.11.8134
M3 - Article
C2 - 22733930
AN - SCOPUS:84863675284
SN - 0361-803X
VL - 199
SP - W35-W42
JO - American Journal of Roentgenology
JF - American Journal of Roentgenology
IS - 1
ER -