{
  "ptid_time": "135_S_6446_2020-07-14",
  "img_path": "/data/qiuhui/data/adni/images/135_S_6446/2020-07-14/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 19,239 mm³, 35.9% below the reference mean. With a Z-score of -0.85 (19.7th percentile), this represents normal volume ; hippocampal volume measures 7,726 mm³, 3.7% below the reference mean. With a Z-score of -0.37 (35.4th percentile), this represents normal volume ; whole brain volume measures 1,053,200 mm³, 7.2% below the reference mean. With a Z-score of -1.01 (15.5th percentile), this represents mild atrophy; entorhinal cortex volume measures 3,644 mm³, 14.5% below the reference mean. With a Z-score of -1.00 (15.7th percentile), this represents mild atrophy; fusiform gyrus volume measures 16,789 mm³, 15.7% below the reference mean. With a Z-score of -1.30 (9.6th percentile), this represents mild atrophy; middle temporal gyrus volume measures 22,846 mm³, 1.9% above the reference mean. With a Z-score of 0.16 (56.3th percentile), this represents normal volume . ",
  "text_data": "Age is 63.5 years. Gender is Male. Education: 12 years. MMSE: 30.0. MoCA: 28.0. Logical Memory: 13.0. APOEε4 alleles: 0.0. Biomarker levels: Flobetaben (FBB): 1.01 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The brain imaging shows mild atrophy in the whole brain, entorhinal cortex, and fusiform gyrus, but hippocampal and ventricular volumes are within normal limits. Cognitive scores (MMSE 30, MoCA 28) are intact, and there is no APOE4 risk allele.  \nDiagnosis: **CN (Cognitively Normal)**  \nConfidence: **Medium** (Atrophy in some regions could suggest early changes, but cognitive performance remains strong and there are no other clinical indicators of impairment.)",
  "timestamp": "2025-07-26T15:51:47.787467"
}