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Mammographic oblique views 45° versus 60° : breast thickness, breast exposure and image qualityObad Kovačević, Dragica ; Brnić, Zoran ; Hebrang, Andrija, ml.Background. Standard screening mammography includes two views: craniocaudal and mediolateral oblique. In the mediolateral oblique projection a central beam angle can varies between 30° and 60°. ... Patients and methods. We compare the thickness of the compressed breast, time-current product, exposures and image quality in two different mammographic oblique views: 45° versus 60°. Ourstudy population consisted of 33 women in whom additional 60° films after standard 45° films were obtained for the objective diagnostic reasons. Results. The mean thickness of the compressed breast was significantly lower with an angle of 60° than with an angle of 45° (47.8 vs. 50.7 mm, p<0.01); themean time current product and the mean breast exposure were significantly lower with an angle of 60° than with an angle of 45° (42.6 vs. 46.7 mAs, p<0.01; 0.67 vs. 0.78 mGy, p<0,01). The difference in the image quality has not reached statisticaI significance (but it exists!). Conclusions. By introducing 60° films instead of commonly used 45° films, mammograms of at least the same quality can be obtained with lower radiation dose, which is of great importance when we remind the great radiosensitivity of glandular breasttissue.Vir: Radiology and oncology. - ISSN 1318-2099 (Vol. 37, no. 1, 2003, str. 5-8)Vrsta gradiva - članek, sestavni delLeto - 2003Jezik - angleškiCOBISS.SI-ID - 16231385
Avtor
Obad Kovačević, Dragica |
Brnić, Zoran |
Hebrang, Andrija, ml.
Teme
Breast Diseases |
Mammography |
Radiation Dosage |
Radiation Monitoring |
Thermoluminescent Dosimetry |
Film Dosimetry |
Dojka, bolezni |
Mamografija |
Sevanje, doziranje |
Sevanje, monitorski nadzor |
Film, dozimetrija |
Termoluminiscentna dozimetrija |
dojke |
diagnostika |
mamografija
Vnos na polico
Trajna povezava
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Obad Kovačević, Dragica | |
Brnić, Zoran | |
Hebrang, Andrija, ml. |
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