High-Resolution MR Imaging of the Parasellar Ligaments.

Ian T Mark, Myung-Ho In, Daehun Kang, Eric Stinson, John Huston, Yunhong Shu, Luciano Leonel, Maria Peris Celda
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Abstract

The parasellar ligaments have been previously described in cadaver specimens and intraoperatively, but identification on MR imaging has eluded radiologists. Using high-resolution T2-weighted MR imaging, we identified the parasellar ligaments as T2-hypointense, bandlike structures that emanate from the medial wall of the cavernous sinus. Subsequent dissection of the same specimen provided matching anatomic images of the parasellar ligaments identified on MRI. This imaging finding is important because resection of the medial wall of the cavernous sinus has been tied to improved outcomes for gross total resection and endocrinologic remission of functioning pituitary adenomas.

鞍副韧带的高分辨率MR成像。
以前曾在尸体标本和术中描述过鞍旁韧带,但放射科医生无法通过磁共振成像进行识别。通过高分辨率t2加权MR成像,我们发现鞍旁韧带为t2低信号,从海绵窦内侧壁发出的带状结构。随后对同一标本的解剖提供了MRI识别的鞍旁韧带的匹配解剖图像。这一影像学发现很重要,因为海绵窦内侧壁的切除与垂体腺瘤大体全切除和内分泌缓解的改善结果有关。
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