{
  "ptid_time": "116_S_6439_2020-07-14",
  "img_path": "/data/qiuhui/data/adni/images/116_S_6439/2020-07-14/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 24,136 mm³, 8.1% above the reference mean. With a Z-score of 0.20 (58.0th percentile), this represents normal volume ; hippocampal volume measures 7,172 mm³, 6.7% below the reference mean. With a Z-score of -0.75 (22.7th percentile), this represents normal volume ; whole brain volume measures 967,138 mm³, 6.0% below the reference mean. With a Z-score of -0.75 (22.7th percentile), this represents normal volume ; entorhinal cortex volume measures 4,184 mm³, 7.5% above the reference mean. With a Z-score of 0.58 (71.9th percentile), this represents normal volume ; fusiform gyrus volume measures 16,592 mm³, 8.9% below the reference mean. With a Z-score of -1.00 (15.9th percentile), this represents mild atrophy; middle temporal gyrus volume measures 17,889 mm³, 12.8% below the reference mean. With a Z-score of -1.14 (12.7th percentile), this represents mild atrophy. ",
  "text_data": "Age is 67.8 years. Gender is Female. Education: 18 years. MMSE: 30.0. MoCA: 30.0. Logical Memory: 17.0. APOEε4 alleles: 0.0. Biomarker levels: Flobetaben (FBB): 1.07 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** The brain volume measurements show mild atrophy in the fusiform gyrus and middle temporal gyrus, but all other regions (hippocampus, whole brain, entorhinal cortex) are within normal ranges. Cognitive scores (MMSE, MoCA) are perfect (30/30), and there is no APOE4 risk allele.  \n\n**Diagnosis:** **CN (Cognitively Normal)**  \n**Confidence:** **High** (No significant structural or cognitive impairment suggestive of MCI or dementia.)",
  "timestamp": "2025-07-26T12:18:55.668044"
}