Jun 28, 2024 · CT cerebral venography (also known as a CTV head or CT venogram) is a contrast-enhanced examination with an acquisition delay providing an accurate detailed depiction of the cerebral venous system. NB: This article is intended to …

Mar 12, 2025 · With contrast administration, especially with a CT venogram, a filling defect in a sinus is sought. When in the superior sagittal sinus it is referred to as the 'empty delta sign'. CTV has a reported sensitivity of 95% compared to DSA as the gold standard 1.

Radiologists do a remarkable number of scans that are normal (in spite of wildly unusual presentations or symptoms). Part of the skill in radiology is knowing when something is normal, and also what else can or should be done to check again (in this case, CTV).

Jul 16, 2024 · CT urography (CTU or CT IVU), also known as CT intravenous pyelography (CT IVP), has now largely replaced traditional IVU in imaging the genitourinary tract. It gives both anatomical and functional information, albeit with a relatively higher dose of radiation.

Gaillard F, Normal CT brain and venogram. Case study, Radiopaedia.org (Accessed on 11 Apr 2025) https://doi.org/10.53347/rID-28100

Mar 29, 2025 · CT head, also known as CT brain, refers to a computed tomography (CT) examination of the brain and surrounding cranial structures. It is most commonly performed as a non-contrast study, but the addition of a contrast-enhanced phase …

Feb 2, 2025 · CT. Unenhanced CT is usually the first imaging investigation performed given the nonspecific clinical presentation in these cases. When not associated with venous hemorrhage or infarction, it can be a subtle finding on CT images, relying on hyperdensity of the sinus being identified. Potential findings include:

Jul 23, 2024 · CT angiography of the cerebral arteries, also known as a CTA carotids or an arch to vertex angiogram, is a non-invasive technique that allows visualization of the internal and external carotid arteries and vertebral arteries and can include just the intracranial compartment or also extend down to the arch of the aorta. The overriding goal of ...

Hacking C CT venogram head axial - labeling questions. Case study, Radiopaedia.org (Accessed on 21 Feb 2025) https://doi.org/10.53347/rID-158879

Cuete D, Normal CT brain. Case study, Radiopaedia.org (Accessed on 16 Apr 2025) https://doi.org/10.53347/rID-23768