{
  "ptid_time": "022_S_4444_2012-08-22",
  "img_path": "/data/qiuhui/data/adni/images/022_S_4444/2012-08-22/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 31,152 mm³, 19.1% below the reference mean. With a Z-score of -0.46 (32.3th percentile), this represents normal volume ; whole brain volume measures 940,462 mm³, 12.9% below the reference mean. With a Z-score of -1.67 (4.7th percentile), this represents moderate atrophy; entorhinal cortex volume measures 3,940 mm³, 3.9% below the reference mean. With a Z-score of -0.27 (39.5th percentile), this represents normal volume ; fusiform gyrus volume measures 19,469 mm³, 3.3% above the reference mean. With a Z-score of 0.29 (61.2th percentile), this represents normal volume ; middle temporal gyrus volume measures 19,158 mm³, 10.2% below the reference mean. With a Z-score of -0.92 (17.9th percentile), this represents normal volume . ",
  "text_data": "Age is 78.0 years. Gender is Male. Education: 18 years. MMSE: 27.0. MoCA: 25.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The whole brain shows moderate atrophy (Z-score -1.67, 4.7th percentile), while other regions (ventricular, entorhinal cortex, fusiform gyrus, middle temporal gyrus) are within normal ranges. Cognitive scores (MMSE 27, MoCA 25) are borderline but still within normal limits for age, and there is no APOE4 risk allele.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (due to borderline cognitive scores and isolated whole brain atrophy, but no clear functional impairment or other regional atrophy)",
  "timestamp": "2025-07-26T02:20:45.550234"
}