2024年9月26日 · On MRI, falx ossification exhibits a typical appearance consisting of a central marrow-containing portion with signal intensity similar to fat (bright on T1), surrounded by low signal intensity representing cortical bone 1-8. There is no difficulty identifying ossification on CT, nevertheless on MRI some differentials should be considered: 1.

To determine the normal appearance of the falx and interhemispheric fissure, 200 consecutive normal CT scans were evaluated prospectively. On unenhanced scans, the normal falx is visualized in 90% of patients and therefore interhemispheric hyperdensity alone should not be considered a sign of subarachnoid hemorrhage.

2019年1月1日 · Due to improved resolution capacity compared to older CT devices and a superior sensitivity and specificity of CT scans compared to the x-ray method, the frequency of FCC, SSSC and TCC was remarkably higher than previously known.

1982年6月1日 · To determine the normal appearance of the flax and interhemispheric fissure, 200 consecutive normal CT scans were evaluated prospectively. On unenhanced scans, the normal falx is visualized...

To determine the normal appearance of the flax and interhemispheric fissure, 200 consecutive normal CT scans were evaluated prospectively. On unenhanced scans, the normal falx is visualized in 90% of patients and therefore interhemispheric hyperdensity alone should not be considered a sign of subarachnoid hemorrhage.

CT scans of 50 patients with subarachnoid hemorrhage were retrospectively evaluated. Criteria for selection were: (1) initial scan within 3 days of ictus; (2) spinal tap indicative of hemorrhage; and (3) CT evidence of blood within subarachnoid spaces (other than the …

2024年11月5日 · The falx is rarely abnormal as an isolated variant; rather it is usually deficient as part of a broader congenital abnormality such as holoprosencephaly 6. The most common variants are seen anteriorly where the falx may be deficient or fenestrated 6.

2017年1月22日 · The CT scan on axial view shows on the cerebral falx the presence of tissue with the same radiological characteristic of adjacent skull bone.

2006年11月30日 · The current images show the incidental finding of falx cerebri ossification which has been evident on 18F-sodium fluoride positron emission tomography/computed tomography (CT) scans of a...

2017年6月1日 · For example, calcified non-enhancing meningiomas seen on CT can be differentiated from ossification of the falx using MR imaging [26]. On the other hand, ossification of the falx can be distinguished from calcification originating from a vascular source with the aid of …