Ventriculography with watersoluble contrast in the diagnosis of posterior fossa tumors (107 cases)

Double-contrast ventriculography with oxygen and water-soluble positive contrast medium, metrizamide (Amipaque)

A technique for ventriculography using both gas and a positive contrast medium metrizamide (Amipaque) is presented. This ventriculographic method proved superior to computerized tomography (CT) scanning in revealing the cause of obstructive hydrocephalus. Small central tumors and intraventricular cysts, often missed with CT, were also well demonstrated. This technique has been used since 1975, and is simple and safe.

Comparison of CT and conventional neuroradiological procedures in lesions in the proximity of the tentorial hiatus

Seventeen cases with (obstructive) lesions in the region of the tentorial hiatus were examined with an EMI CT 1010 brain scanner, of which 8 had additional intrathecal metrizamide. Findings were compared with information received from angiographic studies and conventional contrast examinations of the intracranial CSF spaces and with CT scans of patients presenting with herniation at the tentorial hiatus. CT, including enhancement and intrathecal metrizamide, did not yield optimal information about exact localisation or infiltrative growth of lesions. A combination with conventional procedures was needed in order to obtain essential information.

Localization of velum interpositum AVM with metrizamide ventriculography and simultaneous stereoangiography. Case report

The combination of metrizamide (Amipaque) ventriculography and vertebral angiography with stereoradiography provided precise localization of an arteriovenous malformation of the velum interpositum and an associated hematoma in the lateral ventricles that had not been detected by computerized tomography. This dual technique is recommended for precise localization of suspected intra- or periventricular lesions before surgery.

The lateral recess of the fourth ventricle examined with a water-soluble contrast medium

Difficulties still remain in the routine radiologic examination of the lateral recesses of the fourth ventricle. Ventriculography with the direct introduction of water-soluble contrast medium into the third ventricle has improved the results. The normal anatomic and radiologic appearances and pathologic changes of the lateral recesses are discussed.