This Article Abstract Full Text Full Text (PDF) Services Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by Tsalafoutas, I A Articles by Yakoumakis, E N Search for Related Content PubMed PubMed Citation Articles by Tsalafoutas, I A Articles by Yakoumakis, E N

Variation of the sensitometric characteristics of seven mammographic films with processing conditions

¹ Medical Physics Unit and ³ Radiology Department "Konstantopoulio - Agia Olga" Hospital, 3–5 Agias Olgas, Nea Ionia, 142 33, Athens and ² Medical Physics Department, Medical School, University of Athens, 75 Mikras Asias, 115 27, Athens, Greece

View larger version (25K): [in a new window]   Figure 1. The Hurter and Driffield (H&D) curves (optical density vs log relative exposure) under different processing conditions: (a) MR5-II (Agfa), (b) HT (Agfa), (c) HDR (Agfa), (d) MinR-M (Kodak), (e) MinR-2000 (Kodak), (f) AD-M (Fuji), (g) Konica (CM-H). The optical densities (ODs) of the 21 steps of the sensitometric strips correspond to log relative exposure values (LogE) that range from 0 to 3, in steps of 0.15 each. In these figures only the ODs for LogEge;0.9 (steps 7 to 21) are presented in order to enhance the visibility of the differences in the linear part and the shoulder of the H&D curves.

View larger version (24K): [in a new window]   Figure 2. The variation of the sensitometric parameters with processing conditions: (a) maximum optical density (ODmax), (b) average gradient (AG), (c) film speed. (The details of processing conditions for each code are given in Table 1).

View larger version (27K): [in a new window]   Figure 3. The Hurter and Driffield (H&D) curves of all films under the processing assigned with the code B (the details of processing conditions are given in Table 1).