[Mammography using stationary grids. Qualitative and dosimetric considerations]

Area of Science:

• Medical Imaging
• Radiology
• Mammography

Background:

• Ultra-high-strip-density (UHSD) stationary grids are utilized in mammography.
• Assessing their impact on radiation dose and image quality is crucial.

Purpose of the Study:

• To evaluate the dosimetric and image quality effects of UHSD grids in mammography.
• To determine the clinical utility of UHSD grids in specific mammographic scenarios.

Main Methods:

• Dosimetric measurements were performed using a phantom.
• Mammographic examinations of 62 patients were analyzed.
• Image quality was assessed, particularly at voltages not exceeding 30 kV.

Main Results:

• UHSD grid utilization necessitated a 3.5-fold increase in radiation exposure for a 5 cm thick breast phantom.
• Image quality improvements were observed at voltages below 30 kV.
• Enhanced visualization of questionable masses in dense breast areas was noted.

Conclusions:

• UHSD grids may be beneficial for selected mammographic applications.
• Potential uses include adjunctive whole-breast or targeted radiograms and examination of surgical specimens.