Values of Sinogram Affirmed Iterative Reconstruction Algorithm-Based Low-Dose Computed Tomography Imaging in Clinical Diagnosis of Cerebral Hemorrhage

Table 1

Subjective scores and grading standards of the CT images.

Grade	Score (points)	Display standard
Disqualification	1	The anatomical structure and lesion of the image were blurred and there were many artifacts, so it could not be completely diagnosed.
	2	The anatomical structure and lesion of the image were not displayed, so it was impossible to find the details in the image.
Qualification	3	Most of the image anatomical structure and lesions could be diagnosed, but a few images were not clear.
Good	4	The structure, detail, and focus of the image were clear enough to make a diagnosis, but not very satisfactory.
Excellent	5	There was no artifact, and the image details and lesion sites were displayed, which could provide a clear diagnostic basis.