{
  "ptid_time": "129_S_4422_2013-01-07",
  "img_path": "/data/qiuhui/data/adni/images/129_S_4422/2013-01-07/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 29,776 mm³, 6.1% above the reference mean. With a Z-score of 0.14 (55.5th percentile), this represents normal volume ; whole brain volume measures 1,046,740 mm³, 7.4% above the reference mean. With a Z-score of 0.93 (82.4th percentile), this represents normal volume ; entorhinal cortex volume measures 4,137 mm³, 12.6% above the reference mean. With a Z-score of 0.78 (78.1th percentile), this represents normal volume ; fusiform gyrus volume measures 17,350 mm³, 2.0% above the reference mean. With a Z-score of 0.18 (57.2th percentile), this represents normal volume ; middle temporal gyrus volume measures 18,812 mm³, 1.9% below the reference mean. With a Z-score of -0.16 (43.6th percentile), this represents normal volume . ",
  "text_data": "Age is 71.8 years. Gender is Female. Education: 15 years. MMSE: 30.0. MoCA: 28.0. Logical Memory: 14.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: All brain volume measures (ventricular, whole brain, entorhinal cortex, fusiform gyrus, and middle temporal gyrus) are within normal ranges, with Z-scores close to or above the mean. Cognitive scores (MMSE 30, MoCA 28) are intact, and there is no APOE4 genetic risk factor.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T14:17:28.391141"
}