Jan 21, 2025 · Subdural hemorrhage/hematoma (SDH) is a collection of blood accumulating in the subdural space. Subdural hemorrhage can happen in any age group, is mainly due to head trauma and CT scans are usually sufficient to make the diagnosis. Prognosis var...

Graph demonstrating the evolution of the density on CT of intracranial hemorrhage such as a subdural hematoma. A few important facts should be appreciated. hyperacute hematoma (prior to clotting) will be the same density of unclotted blood - it is made up of the same stuff after all.

Sep 30, 2022 · Subdural hemorrhage (SDH) is a collection of blood between the dura and the arachnoid layers of the meninges. They are common and can occur in any age range, usually related to a history of head trauma. Prognosis tends to depend on the extent of the bleed and associated mass effect.

Subdural hematoma is a bleeding between the inner layer of the dura mater and the arachnoid mater of the meninges. It usually results from traumatic tearing of the bridging veins that cross the subdural space in patients with anticoagulantia therapy.

CT window and level adjustment to visualize subdural hematomas. A patient with traumatic ICH underwent a NCCT. Standard brain window of 75 and level of 20 (A, B) and an optimal subdural window of 150 and level of 30 (C, D) are shown.

In this review, we identified and described the most common radiological methodologies for measurements of cSDH thickness, cSDH volume and of midline shift. There are numerous published methods on how to evaluate cSDH thickness, cSDH volume and midline shift but no common standard.

Computed tomography (CT) remains the preferred diagnostic method for the chronic subdural hematoma (cSDH) 3). Chronic SDH has a variety of imaging characteristics in CT; low, intermediate, or high density relative to brain parenchyma 3,6). Chronic SDH frequently appears to be mixed density 7,9).

CT is now the first step in diagnosis of SDH. MRI is considered an excellent imaging tool for evaluating such patients. Symptomatic SDH requires emergent treatment to identify and control sites...

Jan 18, 2025 · Subdural Hematoma. Axial CT scan demonstrates a left parietal subdural hematoma hyperdense to the brain (white arrows). There is associated mass effect with effacement of the left lateral ventricle and shift of the midline to the right (red arrows).

Axial CT Head: Acute on Chronic Bilateral Subdural Hematoma showing features of both acute and chronic bleeding. Image Source: Radiopaedia.org.