Microdose mammography.
Tens of thousands of mammograms are performed daily in the United States. Accumulated radiation biologic data suggest that approximately 90-rad is the level of radition to the breast above which the incidence of cancer may be increase. A microdose system of roentgenography is described that provides better images at one-third to one-fifth the exposure of the commonly used low-dose system and about one-eight to one-tenth the dose of Xeromammography. This system should allow for repeated x-ray study in a patient as required, without exceeding the critical level.
D001943:Breast Neoplasms / Q000000981:diagnostic imaging; D005260:Female; D006801:Humans; D008327:Mammography / Q000009:adverse effects / Q000379:methods; D008452:Maximum Allowable Concentration; D009381:Neoplasms, Radiation-Induced / Q000209:etiology; D011829:Radiation Dosage; D013679:Technology, Radiologic