| Autor: |
M, San Nicolò, E, Moroder |
| Rok vydání: |
1986 |
| Předmět: |
|
| Zdroj: |
La Radiologia medica. 72(7-8) |
| ISSN: |
0033-8362 |
| Popis: |
Magnification in mammography is changing for the worse if the goal is to show objects (microcalcifications) which are smaller or of the same size as the focal spot of the x-ray tube. A radiograph without intensifying screens offers more information than a standard screen-film mammography. Magnification yields an easier visibility of microcalcifications larger in size than the focal spot; there are the disadvantages of the microfocal tube. With the intensifying screens now in use the most profitable focal spot size in mammography seems to be 0.4-0.6 mm. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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