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OBJECTIVE To evaluate the image registration accuracy and efficiency of CT and MRI fusion using three algorithms in nasopharyngeal carcinoma (NPC). METHODS AND MATERIALS Twelve sets of CT and MRI scans of 12 NPC patients were fused using three image registration algorithms, respectively: Mark-and-link, Interactive, and Normalized Mutual Information (NMI).(More)
Stereotactic radiosurgery (SR) is a standard therapy for brain metastases. Radiation necrosis (RN) of the brain is a syndrome of brain coagulative and fibrinoid necrosis and cortical irritation that occurs following radiotherapy. RN following SR peaks in a delayed fashion at 9-12 months postprocedure. Vasogenic cerebral edema secondary to necrosis occurs(More)
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