Table 5.

Reports measuring the entire colon length using CT colonography

First author	Publication year	Software	N	Indication	Nationality	Female/male	Age, year (mean ± SD)	Colon length, cm (mean ± SD)	Range
Hanson et al. [17]	2007	Viatronix	100	Incomplete CS	American	59/41	63.4 ± 10.6	210.8 ± 38.2	Maximum > 3 m
			100	Complete CS	American	40/60	58.2 ± 7.9	167.0 ± 20.8
Duncan et al. [18]	2009	Viatronix	338	Screening	American	122/216	58 ± 7.0	189	75 to 257 cm
Khashab et al. [21]	2009	Viatronix	505	Screening	American	266/239	56.6 ± 7.3	189.5 ± 26.3	120 to 299 cm
Eickhoff et al. [19]	2010	Viatronix	100	Screening	American	40/60	58.2 ± 7.9	167.0 ± 20.8	n/a
Nagata et al. [31]	2013	AZE	650	Screening	American	335/315	58.9	158.2 ± 21.7	n/a
			650		Japanese	321/329	59.6	154.7 ± 20.4	n/a
Present study	2020	AZE	295	FIT positive	Japanese	141/154	58 ± 11.0	150.3 ± 18.5	109.5 to 195.9 cm

Report by Punwani et al. [20] is not cited because data on entire colon length in all patients are not available

SD standard deviation, CS colonoscopy, FIT fecal immunochemical test, n/a not available