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. 2026 Jan 23;14:e79389. doi: 10.2196/79389

Table 2. Intragroup and intergroup coefficient of variation (CV) for T1, T2, and proton density (PD) based on anatomical automatic labeling (AAL) and Johns Hopkins University (JHU) atlas in healthy individuals.

Brain region Intragroup CV (%)
      
Intergroup CV (%) (T1/T2/PD) P value (T1/T2/PD)
DLa (T1/T2/PD) Routine (T1/T2/PD)
AAL atlas
 Frontal 7.41/7.28/3.62 8.20/7.14/3.44 2.07/5.17/0.61 .29/.001/.94
 Temporal 5.10/8.00/3.31 5.50/8.62/3.27 1.65/4.98/0.40 .38/.003/.83
 Parietal 9.32/14.40/3.02 9.08/15.90/2.97 1.30/8.11/0.45 .38/<.001/.42
 Occipital 7.43/11.07/2.15 7.19/13.32/2.41 1.72/5.10/0.47 .60/.005/.55
 Insula 9.03/15.23/2.39 9.86/13.44/2.53 1.80/7.12/0.72 .95/.02/.36
 Hippocampus 8.95/11.43/2.53 9.02/14.30/2.71 2.62/6.08/0.72 .22/.005/.34
 Caudate 13.69/16.20/5.29 14.65/17.14/5.37 2.60/5.32/0.76 .70/.35/.92
 Putamen 13.48/12.37/2.62 14.48/17.33/3.47 2.04/5.44/0.73 .99/.11/.92
 Pallidum 18.77/16.33/2.26 17.25/17.00/2.61 3.54/3.37/0.85 .51/.56/.50
 Thalamus 13.37/12.39/2.38 13.99/13.96/3.00 1.69/4.05/0.88 .77/.27/.67
JHU atlas
 MCPb 7.28/7.04/1.72 5.89/8.13/1.64 1.67/2.79/0.51 .50/.08/.28
 GCAc 15.33/9.77/5.84 15.22/9.11/6.44 1.99/2.89/0.76 .87/.52/.55
 SCAd 6.44/3.70/1.98 6.00/4.64/1.94 1.74/1.71/0.63 .19/.05/.13
 CPe 10.16/7.81/4.77 9.62/7.54/5.01 2.73/2.55/1.08 .41/.14/.55
 ICf 9.55/4.29/3.95 9.63/4.52/4.20 1.30/1.74/0.68 .83/.21/.45
 ACRg 9.01/5.62/2.94 9.78/6.91/3.86 1.97/1.34/0.91 .92/.97/.98
 SCRh 9.95/4.68/3.73 8.35/4.95/3.07 2.16/1.31/1.03 .27/.14/.28
 PCRi 14.19/3.72/4.25 12.20/4.59/3.69 2.60/2.49/0.96 .42/.03/.23
 ECj 11.32/5.02/2.82 11.23/4.89/3.36 1.38/0.92/0.95 .65/.69/.21
a

DL: deep learning.

b

MCP: middle cerebellar peduncle.

c

GCA: genu of corpus callosum.

d

SCA: splenium of corpus callosum.

e

CP: cerebral peduncle.

f

IC: internal capsule.

g

ACR: anterior corona radiata.

h

SCR: superior corona radiata.

i

PCR: posterior corona radiata.

j

EC: external capsule.