{
  "ptid_time": "041_S_5100_2014-03-28",
  "img_path": "/data/qiuhui/data/adni/images/041_S_5100/2014-03-28/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 55,334 mm³, 43.7% above the reference mean. With a Z-score of 1.05 (85.2th percentile), this represents mild enlargement; hippocampal volume measures 8,516 mm³, 12.7% above the reference mean. With a Z-score of 1.23 (89.2th percentile), this represents mild enlargement; whole brain volume measures 1,194,740 mm³, 10.7% above the reference mean. With a Z-score of 1.39 (91.7th percentile), this represents mild enlargement; entorhinal cortex volume measures 3,684 mm³, 10.2% below the reference mean. With a Z-score of -0.69 (24.5th percentile), this represents normal volume ; fusiform gyrus volume measures 19,606 mm³, 4.1% above the reference mean. With a Z-score of 0.35 (63.6th percentile), this represents normal volume ; middle temporal gyrus volume measures 20,042 mm³, 6.1% below the reference mean. With a Z-score of -0.55 (29.2th percentile), this represents normal volume . ",
  "text_data": "Age is 72.2 years. Gender is Male. Education: 16 years. MMSE: 27.0. MoCA: 30.0. Logical Memory: 17.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The ventricular volume is mildly enlarged (Z-score 1.05), but hippocampal and whole brain volumes are above the reference mean, suggesting no significant atrophy. The entorhinal cortex is slightly reduced but still within normal range (Z-score -0.69). Cognitive scores (MMSE 27, MoCA 30) are normal, and APOE4-negative status lowers Alzheimer's risk.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T07:26:12.605701"
}