[Retracted] Multi-Slice Spiral Computed Tomography Image Features under Hybrid Iterative Reconstruction Algorithm in Staging Diagnosis of Bladder Cancer

Table 1

CT staging of bladder cancer.

Stages		Imaging features
T1		Lump in the bladder cavity and smooth bladder wall without thickening.
T2	T2a	The bladder wall was thickened, but there was no local stiffness.
	T2b	The bladder wall was thickened and stiff, but the outer margin was smooth.
T3		Bladder wall was thickened and irregular, with blurred boundaries, and there was soft tissue density shadow in the surrounding fat layer.
T4		Tumor invaded adjacent organs. When the tumor invaded the seminal vesicle, the angle of the bladder seminal vesicle disappeared. When the tumor invaded the prostate, the boundary of the prostate was not clear and the density was uneven.