Are there specific calibration procedures required for maintaining accuracy in flat panel detector images?

Specific calibration procedures are crucial for maintaining accuracy in flat panel detector (FPD) images. These procedures are necessary to ensure that the FPD continues to produce reliable and consistent images over time. Calibration typically involves several key steps:

1. Spatial Calibration: This involves mapping the physical dimensions of the detector to the digital image coordinates. It ensures that the size and shape of structures in the image accurately represent the anatomy being imaged.

2. Flat-field Correction: Flat-field correction compensates for variations in sensitivity across the detector surface. It involves acquiring images of a uniform X-ray field (flat-field images) and using these to correct for pixel-to-pixel variations in sensitivity.

3. Dark Current Correction: Dark current refers to the signal generated by the detector in the absence of X-ray exposure. Dark current correction removes this background signal, reducing image noise.

4. Gain Calibration: Gain calibration adjusts the amplifier settings to ensure consistent image contrast and brightness.

Regular calibration, typically performed by qualified technicians, is essential for maintaining the accuracy and reliability of FPD images in medical imaging applications. We are a manufacturer of X-ray machines and their accessories. If you have any needs for FPDs, please feel free to contact us. Whatsapp:+86 18953679166. Email: service@newheek.com

Author：Newheek-Detector