Monitoring the Arrival in the Cerebral Hemispheres of Intravenously Injected Radioisotope (Cerebral Radiorheography)

A preliminary study has been carried out to establish the usefulness of a simple clinical technique for evaluating the relative cerebral blood flow in each hemisphere. The theory of the test is to monitor the arrival in the head of intravenously injected radioisotope. Two collimated detectors monitor the two cerebral hemispheres for 60 seconds. The test is simple to administer and extremely safe since a rapidly excreted radioisotope is used. Preliminary study suggests it may be of considerable clinical value in view of its simplicity and safety.