Fig. 1From: The risk factors of hemorrhage in stereotactic needle biopsy for brain lesions in a large cohort: 10 years of experience in a single centera High-density area measuring less than 5 mm in diameter at the biopsy puncture site on the postoperative CT scan was not considered to indicate hemorrhage. b Intraparenchymal hematoma measuring more than 5 mm in diameter in the postbiopsy CT scan image was positively defined as operation-related hemorrhageBack to article page