G Schmidt1. 1. Institut für klinische Radiologie, Klinikum der Ludwig-Maximilians-Universität München, Campus Großhadern, Marchioninistr. 15, 81377, München, Deutschland. gerwin.schmidt@med.uni-muenchen.de
Abstract
CLINICAL/METHODICAL ISSUE: Staging and follow-up of colorectal cancer are usually performed with multimodal imaging strategies. These can be time-intensive and potentially lead to examiner-dependent bias. Alternatively, whole body magnetic resonance imaging (WB-MRI) provides oncologic imaging with a systemic approach. STANDARD RADIOLOGICAL METHODS: Ultrasound, multislice computed tomography (MSCT), dedicated MRI and positron emission tomography/CT (PET/CT). METHODICAL INNOVATIONS: High-resolution WB-MRI with focused examination of various organs, such as the pelvis and abdomen, lungs, brain and skeletal system, using different sequence and contrast techniques. PERFORMANCE: Detection of colorectal tumor recurrence with WB-MRI provides 83% accuracy (lymph node metastases 80%, organ metastases 86%). ACHIEVEMENTS: Potential cost reduction through decreased examination time and personnel costs. PRACTICAL RECOMMENDATIONS: Whole body MRI is a radiation-free alternative to standard sequential algorithms of staging and follow-up of colorectal cancer.
CLINICAL/METHODICAL ISSUE: Staging and follow-up of colorectal cancer are usually performed with multimodal imaging strategies. These can be time-intensive and potentially lead to examiner-dependent bias. Alternatively, whole body magnetic resonance imaging (WB-MRI) provides oncologic imaging with a systemic approach. STANDARD RADIOLOGICAL METHODS: Ultrasound, multislice computed tomography (MSCT), dedicated MRI and positron emission tomography/CT (PET/CT). METHODICAL INNOVATIONS: High-resolution WB-MRI with focused examination of various organs, such as the pelvis and abdomen, lungs, brain and skeletal system, using different sequence and contrast techniques. PERFORMANCE: Detection of colorectal tumor recurrence with WB-MRI provides 83% accuracy (lymph node metastases 80%, organ metastases 86%). ACHIEVEMENTS: Potential cost reduction through decreased examination time and personnel costs. PRACTICAL RECOMMENDATIONS: Whole body MRI is a radiation-free alternative to standard sequential algorithms of staging and follow-up of colorectal cancer.
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