Value of the brain angioscintigraphy in posterior view.

The results obtained with intravenous brain angioscintigraphy (IBAS) with 99 mTc-DTPA(Sn) are evaluated in 61 patients with clinical suspicion of cerebellar, cerebral or cranial lesions of posterior location or without focal signs or with a previous IBAS in anterior view being normal or of low significance. One hundred patients without demonstrable cerebral or cranial pathology were explored to define the normal characteristics and variation of the IBAS in posteior view. Of the 61 patients with pathology, 45 showed angioscintigraphic alterations. The following angioscintigraphic patterns were found: 1. Perfusion increased, 2. Perfusion diminished, 3. Flip-flop, 4. Mixed pattern, 5. Circulatory arrest, 6. Jugular venous reflux, 7. Normal IBAS associated with an abnormal morphologicall study, 8. Normal IBAS associated with a normal morphological study.

Renal uptake of 67Ga-citrate in renal amyloidosis due to familiar Mediterranean fever.

Renal uptake of 67Ga-citrate is described in a patient with biopsy-proven amyloidosis of the kidneys, due to Familiar Mediterranean Fever. After administration 150 MBq (4 mCi) 67Ga-citrate, scans were done at 48, 72, and 120 h. Intense uptake was noted in both kidneys. A renal biopsy done 5 days after the 67Ga-citrate scan revealed a pattern typical of amyloidosis. Gallium scanning can be useful in patients with fever of unknown origin. Renal amyloidosis can be considered when renal uptake of 67Ga-citrate associated with nephrotic syndrome is observed.

[Intravenous brain angioscintigraphy and brain death (author's transl)]. / Muerte cerebral en niños. Valor diagnóstico de la angiogammagrafía cerebral intravenosa y de las imágenes precoces.

Intravenous brain angioscintigraphy in combination with immediate static scan are very useful as a complement to the clinical and electroencephalographic data in diagnosis of brain death. Confusion in the differentiation of extracerebral from intracerebral flow on the dynamic radionuclide angiogram can be accomplished by identifying presence or absence of uptake in cerebral sinuses. Authors consider that the radionuclide study should be carried out in posterior view. Exploration is safe, quick to perform and easy to interpret and it enables to distinguish brain death from comas due to drug intoxication.