Table 4 Summary of IDPs at the first imaging visit for all participants, and separated by gender. Values are reported as mean and standard deviation. ASAT: abdominal subcutaneous adipsose tissue; Conc: concentration; CSA: cross-sectional area; PDFF: proton density fat fraction; VAT: visceral adipose tissue.

From: Precision MRI phenotyping enables detection of small changes in body composition for longitudinal cohorts

 

N

All Participants

Women

Men

Liver Volume (ml)

2919

\(1400.61 \pm 276.70\)

\(1282.60 \pm 217.11\)

\(1519.01 \pm 279.52\)

Lungs Volume (ml)

2918

\(2601.53 \pm 714.94\)

\(2238.47 \pm 498.36\)

\(2966.08 \pm 714.09\)

Pancreas Volume (ml)

2809

\(61.10 \pm 15.27\)

\(57.07 \pm 13.62\)

\(65.14 \pm 15.77\)

Left Kidney Volume (ml)

2916

\(145.30 \pm 33.43\)

\(127.70 \pm 25.56\)

\(163.00 \pm 30.98\)

Right Kidney Volume (ml)

2916

\(145.67 \pm 30.88\)

\(130.42 \pm 23.48\)

\(160.99 \pm 29.83\)

Spleen Volume (ml)

2913

\(170.22 \pm 62.78\)

\(143.35 \pm 45.26\)

\(197.18 \pm 66.27\)

ASAT Volume (ml)

2919

\(8286.55 \pm 3923.02\)

\(9669.30 \pm 4,040.36\)

\(6899.06 \pm 3,258.31\)

VAT Volume (ml)

2920

\(3821.62 \pm 2,226.94\)

\(2,688.03 \pm 1,477.54\)

\(4,958.33 \pm 2,272.45\)

Total Thigh Subcutaneous Fat (ml)

2919

\(7357.26 \pm 2,970.84\)

\(8895.89 \pm 2,873.70\)

\(5813.35 \pm 2,153.87\)

Total Thigh Internal Fat Volume (ml)

2919

\(655.60 \pm 218.17\)

\(600.58 \pm 176.14\)

\(710.80 \pm 241.18\)

Total Muscle Volume (ml)

2919

\(18,933.38 \pm 4,473.99\)

\(15,134.07 \pm 1,766.79\)

\(22,745.72 \pm 2,818.74\)

Total Iliopsoas Muscle Volume (ml)

2912

\(638.04 \pm 170.82\)

\(498.53 \pm 70.43\)

\(778.31 \pm 119.51\)

Total Paraspinal Muscle CSA (\(\text {mm}^2\))

2908

\(1328.77 \pm 491.79\)

\(1066.77 \pm 317.48\)

\(1592.22 \pm 495.32\)

Total Thigh Muscle Volume (ml)

2919

\(8647.08 \pm 2,209.44\)

\(6814.87 \pm 964.52\)

\(10,485.58 \pm 1,447.97\)

Heart Volume (ml)

2918

\(498.74 \pm 119.82\)

\(416.15 \pm 66.77\)

\(581.66 \pm 102.82\)

Superior Vena Cava CSA (\(\text {mm}^2\))

2778

\(509.63 \pm 118.01\)

\(472.22 \pm 104.41\)

\(546.65 \pm 119.05\)

Descending Suprarenal Aorta CSA (\(\text {mm}^2\))

2888

\(643.58 \pm 100.35\)

\(591.21 \pm 81.52\)

\(696.10 \pm 89.43\)

Descending Thoracic Aorta CSA (\(\text {mm}^2\))

2891

\(643.36 \pm 106.23\)

\(589.03 \pm 84.41\)

\(697.80 \pm 97.66\)

Aortic Arch CSA (\(\text {mm}^2\))

2767

\(878.30 \pm 199.51\)

\(842.40 \pm 193.35\)

\(915.66 \pm 199.03\)

Descending Infrarenal Aorta CSA (\(\text {mm}^2\))

2,871

\(390.22 \pm 66.45\)

\(370.04 \pm 58.36\)

\(410.38 \pm 67.93\)

Median Liver Iron Conc (mg/g)

2,909

\(1.23 \pm 0.31\)

\(1.21 \pm 0.25\)

\(1.24 \pm 0.36\)

Median Pancreas Iron Conc (mg/g)

2689

\(0.77 \pm 0.09\)

\(0.80 \pm 0.10\)

\(0.75 \pm 0.07\)

Median Paraspinal Muscle Iron Conc (mg/g)

2908

\(1.18 \pm 0.11\)

\(1.18 \pm 0.13\)

\(1.18 \pm 0.10\)

Median Spleen Iron Conc (mg/g)

2753

\(0.90 \pm 0.29\)

\(0.86 \pm 0.27\)

\(0.94 \pm 0.31\)

Median Liver PDFF (%)

2909

\(4.72 \pm 4.67\)

\(3.94 \pm 4.05\)

\(5.50 \pm 5.11\)

Median Pancreas PDFF (%)

2689

\(10.10 \pm 7.53\)

\(7.97 \pm 5.90\)

\(12.22 \pm 8.34\)

Median Paraspinal Muscle PDFF (%)

2908

\(5.34 \pm 2.29\)

\(5.69 \pm 2.40\)

\(4.98 \pm 2.12\)