Ultrafast Cone-Beam Computed Tomography: A Comparative Study of Imaging Protocols during Image-Guided Therapy Procedure

Table 4

Details of the patient tumor characteristics obtained using ultrafast CBCT image data (P1: imaging protocol 1; P2: imaging protocol 2).

Type of hepatic tumor	Tumor involvement	Hepatic tumor groups	Number of patients		Number of tumors		Mean dimension in cm ()
	(P1/P2)		P1	P2	P1	P2	P1	P2
Hypoenhanced tumor	Right lobe: 16/19	Metastasis from:
	Left lobe: 10/13	Thyroid carcinoma	5	6	11	19	3.9 × 3.4	3.8 × 3.5
	Caudate lobe: 0/5	Colorectal carcinoma	6	7	17	21	4.5 × 4.2	4.3 × 4.1
	Quadrate lobe: 2/3
Heterogeneously enhanced tumor	Right lobe: 18/21	Cholangiocarcinoma	5	4	13	13	3.5 × 3.4	3.6 × 3.4
	Left lobe: 11/11	Metastasis from:
	Caudate lobe: 4/3	Colorectal carcinoma	4	7	9	11	3.8 × 3.2	4.2 × 3.7
	Quadrate lobe: 0/2	Breast carcinoma	4	3	11	13	4.2 × 3.7	4 × 3.7
Homogenously enhanced tumor	Right lobe: 19/21	Hepatocell. carcinoma	7	5	21	19	3.6 × 3.1	3.7 × 3.3
	Left lobe: 11/13	Cholangiocarcinoma	5	5	6	12	4.6 × 3.6	3.9 × 3.5
	Caudate lobe: 2/4	Metastasis from:
	Quadrate lobe: 2/5	Colorectal carcinoma	4	3	7	12	4 × 3.8	4.2 × 3.5