[State of the art and developmental trends of venous and arterial digital subtraction angiography in neuroradiology].

After presentation of principle and technology of digital subtraction angiography the results of 649 investigations with the peripheral venous method are demonstrated and first experience are discussed critically. In conclusion the method of venous digital subtraction angiography can be estimated as useful for an adequate diagnosis of the extracranial brain vessels. Diagnostic statements of the intracranial vessels by venous injection are limited, and therefore a combined investigation including normal angiography remains necessary. In the next future neuroradiological investigations cannot renounce from selective arterial techniques. It can be expected that normal angiographic investigations will be replaced by digital subtraction angiography with arterial injection of contrast medium.