Schueler B A, Gray J E, Gisvold J J
Department of Diagnostic Radiology, Mayo Clinic, Rochester, MN 55905.
Radiology. 1992 Sep;184(3):629-34. doi: 10.1148/radiology.184.3.1509043.
A comparison study was performed to evaluate the image quality and radiation dose of six mammographic screen-film combinations: a Min-R screen with OM-1, SO-155, and SO-177 films (Eastman Kodak); a Min-R medium screen (Eastman Kodak) with OM-1 film; an HR Mammo medium screen (Fuji Medical Systems USA) with OM-1 film; and a Min-R fast screen with T-Mat M II film (Eastman Kodak). SO-177 films were processed with an extended cycle. Exposures of an acrylic test object with embedded masses, fibers, and specks and of a preserved breast specimen were made, for two paired image comparison tests in which the visibility of diagnostic features, contrast, and noise were judged. In most areas of image quality evaluated, a Min-R screen with OM-1, SO-155, and SO-177 films was superior. These three screen-film combinations had similar imaging characteristics, even though OM-1 film requires a higher radiation exposure. Images produced with a Min-R fast screen and T-Mat M II film were significantly lower in quality.
进行了一项比较研究，以评估六种乳腺钼靶增感屏-胶片组合的图像质量和辐射剂量：一种配备OM-1、SO-155和SO-177胶片（伊士曼柯达公司）的Min-R增感屏；一种配备OM-1胶片的Min-R中速增感屏（伊士曼柯达公司）；一种配备OM-1胶片的HR Mammo中速增感屏（美国富士医疗系统公司）；以及一种配备T-Mat M II胶片（伊士曼柯达公司）的Min-R高速增感屏。SO-177胶片采用延长显影周期进行冲洗。对带有嵌入肿块、纤维和斑点的丙烯酸测试物体以及保存的乳腺标本进行了曝光，用于两项配对图像比较测试，在测试中判断诊断特征的可见性、对比度和噪声。在评估的大多数图像质量区域，配备OM-1、SO-155和SO-177胶片的Min-R增感屏表现更优。这三种增感屏-胶片组合具有相似的成像特性，尽管OM-1胶片需要更高的辐射曝光量。使用Min-R高速增感屏和T-Mat M II胶片产生的图像质量明显较低。
