{
  "ptid_time": "068_S_0473_2016-04-26",
  "img_path": "/data/qiuhui/data/adni/images/068_S_0473/2016-04-26/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 37,235 mm³, 20.8% below the reference mean. With a Z-score of -0.60 (27.3th percentile), this represents normal volume ; hippocampal volume measures 7,623 mm³, 9.4% above the reference mean. With a Z-score of 0.81 (79.2th percentile), this represents normal volume ; whole brain volume measures 1,065,500 mm³, 3.5% above the reference mean. With a Z-score of 0.46 (67.8th percentile), this represents normal volume ; entorhinal cortex volume measures 3,870 mm³, 2.5% below the reference mean. With a Z-score of -0.16 (43.5th percentile), this represents normal volume ; fusiform gyrus volume measures 18,405 mm³, 1.9% above the reference mean. With a Z-score of 0.16 (56.5th percentile), this represents normal volume ; middle temporal gyrus volume measures 23,165 mm³, 14.8% above the reference mean. With a Z-score of 1.33 (90.8th percentile), this represents mild enlargement. ",
  "text_data": "Age is 82.6 years. Gender is Male. Education: 18 years. MMSE: 28.0. MoCA: 27.0. Logical Memory: 13.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** All brain volume measures (ventricular, hippocampal, whole brain, entorhinal cortex, fusiform gyrus, and middle temporal gyrus) fall within normal ranges or show mild enlargement, with no significant atrophy. Cognitive scores (MMSE 28, MoCA 27) are within normal limits for age, and APOE4 status (heterozygous) does not strongly indicate elevated risk in isolation.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T08:49:17.865623"
}