{
  "ptid_time": "067_S_4184_2012-09-19",
  "img_path": "/data/qiuhui/data/adni/images/067_S_4184/2012-09-19/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 24,003 mm³, 7.5% above the reference mean. With a Z-score of 0.19 (57.4th percentile), this represents normal volume ; whole brain volume measures 1,031,740 mm³, 0.3% above the reference mean. With a Z-score of 0.03 (51.2th percentile), this represents normal volume ; entorhinal cortex volume measures 4,914 mm³, 26.2% above the reference mean. With a Z-score of 2.03 (97.9th percentile), this represents significant enlargement; fusiform gyrus volume measures 17,586 mm³, 3.4% below the reference mean. With a Z-score of -0.39 (35.0th percentile), this represents normal volume ; middle temporal gyrus volume measures 18,049 mm³, 12.0% below the reference mean. With a Z-score of -1.07 (14.2th percentile), this represents mild atrophy. ",
  "text_data": "Age is 63.3 years. Gender is Female. Education: 20 years. MMSE: 29.0. MoCA: 26.0. Logical Memory: 19.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The brain volume data shows mostly normal measurements, with mild atrophy in the middle temporal gyrus but significant enlargement in the entorhinal cortex (unusual for Alzheimer's). Cognitive scores (MMSE 29, MoCA 26) are borderline for MCI but still within normal range for age. No APOE4 risk allele is present.  \n\n**Diagnosis:** **CN (Cognitively Normal)**  \n**Confidence:** **Medium** (MoCA is slightly low, but no clear structural or genetic markers of impairment)",
  "timestamp": "2025-07-26T08:37:38.867985"
}