A collimator for reduced radiation dose with improved visualization of soft tissues.
The authors describe a collimator for use in diagnostic radiology. Clinical radiographs show enhanced soft-tissue detail through the use of interchangeable straight and curved wedge filters, and in situ dosimetry using a head phantom shows that the provision for asymmetric beam limitation results in reduction of absorbed dose.
D006801:Humans; D011829:Radiation Dosage; D011859:Radiography; D012886:Skull / Q000000981:diagnostic imaging; D013679:Technology, Radiologic / Q000295:instrumentation*