Imaging in Gastrointestinal Cancer

摘要: Routine and innovative imaging approaches are used for screening, diagnosis staging, monitoring treatment, surveillance in gastrointestinal cancers. While screening endoscopy has been the standard diagnosing most tumors, noninvasive CT colonography evolved is beginning to find routine use practice. For scan backbone of over last 30 years. Functional modalities, such as PET scans, now employed an added tool assist staging GI cancers, particularly detect occult metastatic disease so futile surgical interventions can be avoided. adopted esophageal cancers data evolving other Clinical trials using functional early treatment limited. The best cancer, where a multi-institutional study showed that done at 2 weeks after induction chemotherapy could identify patients with metabolic response. Future clinical may enable clinicians provide rapid adjustments therapy each patient. role resected cancer recurrence, which amenable curative resections. Studies have shown follow-up CT, along CEA colonoscopy improve survival colorectal patients. Ultimately, proper all available technology will translate improved outcomes