Thyroid imaging may be performed with which type of collimators?

Thyroid imaging is typically performed using collimators that are designed to optimize imaging for small, specific organs, such as the thyroid gland. Pinhole collimators are particularly effective because they allow for high-resolution imaging of small structures by providing a focused view of the organ of interest. This type of collimator helps reduce the effects of scatter, enhancing the image quality of the thyroid.

Parallel hole collimators are also suitable for thyroid imaging, although they tend to be used in cases where the field of view is larger, or where depth-of-field considerations are less critical. They offer uniform sensitivity across the field, making them versatile for different imaging situations.

By allowing the use of either pinhole or parallel hole collimators, the correct answer recognizes the different imaging requirements and conditions under which each type can be effectively applied to thyroid imaging, offering flexibility based on the clinical scenario and the desired resolution. This combination enables practitioners to choose the most appropriate collimation technique for optimizing the quality and accuracy of the thyroid imaging procedure.