Kaffe I, Gratt B M
Section of Oral Pathology and Oral Medicine, School of Dental Medicine, Tel-Aviv University, Israel.
Oral Surg Oral Med Oral Pathol. 1987 Sep;64(3):367-72. doi: 10.1016/0030-4220(87)90019-3.
Image quality of E-speed film processed in four rapid chemistry solutions was evaluated and compared to that of D-speed film. One-hundred-twenty films (60 E-speed and 60 D-speed) were exposed with the use of a quality-control phantom and processed in four different rapid solutions. The images were evaluated for speed, contrast, fog and base, resolution, and granularity, and the useful lifetime of the solutions was determined. E-speed film processed with rapid chemistry produced images equal in quality to D-speed film in the range tested (70 to 90 kVp). Fog and base levels of E-speed film were greater than those of D-speed film. The resolution and granularity of the images were equal and were judged adequate in both film types, regardless of the chemistry used. Rapid processing solutions were found to have a 10% to 15% shorter useful lifetime with E-speed film than with D-speed film. The processing of E-speed film in rapid chemistry is recommended for emergency care and endodontics.
评估了在四种快速冲洗化学药液中冲洗的E速胶片的图像质量,并与D速胶片的图像质量进行了比较。使用质量控制体模对120张胶片(60张E速和60张D速)进行曝光,并在四种不同的快速冲洗药液中冲洗。对图像的感光度、对比度、灰雾度和片基、分辨率以及颗粒度进行了评估,并确定了药液的有效使用寿命。在测试范围内(70至90 kVp),用快速冲洗化学药液冲洗的E速胶片产生的图像质量与D速胶片相当。E速胶片的灰雾度和片基密度高于D速胶片。两种胶片类型的图像分辨率和颗粒度相当,且无论使用何种化学药液,均判定为足够。发现快速冲洗药液用于E速胶片时的有效使用寿命比用于D速胶片时短10%至15%。对于急诊护理和牙髓病学,建议使用快速冲洗化学药液冲洗E速胶片。