Evaluation of mitral chordae tendineae length using four-dimensional computed tomography

Table 1 Basic data and underlying diseases of the participants

Case	Age (yr)	Sex	Heigh (cm)	BW (kg)	BSA (m2)	BMI	Underlying disease
1	76	F	149.0	53.4	1.47	24.0	DLp, HT
2	75	M	164.0	61.9	1.67	23.0	None
3	76	F	149.0	50.0	1.43	22.5	Multiple CI
4	80	F	146.0	50.5	1.41	23.6	HT
5	75	M	159.0	65.5	1.68	25.9	CI
6	79	F	148.7	45.0	1.36	20.3	HT
7	85	M	164.2	52.4	1.56	19.4	IP
8	72	F	156.0	53.0	1.51	21.7	CI
9	70	M	170.0	63.4	1.74	21.9	None
10	72	M	162.0	58.5	1.62	22.2	GC, CRC
11	67	F	146.0	51.8	1.43	24.3	DM
Average	75	M: 5, F: 6	155.8	55.0	1.53	22.6

M: Male; F: Female; BW: Body weight; BSA: Body surface area; BMI: Body mass index; DLp: Dyslipidemia; HT: Hypertension; CI: Cerebral infarction; IP: Interstitial pneumonia; GC: Gastric cancer; CRC: Colorectal cancer; DM: Diabetes mellitus.

Table 2 Maximum chordae tendineae length

Case	cA (mm)	cP (mm)
1	17.6	20.5
2	20.1	23.7
3	18.1	19.6
4	19.5	23.4
5	21.6	25.0
6	18.9	18.8
7	18.2	21.4
8	19.8	23.2
9	22.9	26.0
10	23.2	33.7
11	21.7	22.8
Average	20.2 ± 1.9	23.5 ± 4.1

cA: The primary chordae tendineae from the anterior papillary muscle to the A1-2 region; cP: The primary chordae tendineae from the posterior papillary muscle to the A2-3 region.