{
  "ptid_time": "067_S_6045_2017-07-13",
  "img_path": "/data/qiuhui/data/adni/images/067_S_6045/2017-07-13/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 25,410 mm³, 9.5% below the reference mean. With a Z-score of -0.22 (41.4th percentile), this represents normal volume ; hippocampal volume measures 7,639 mm³, 7.4% above the reference mean. With a Z-score of 0.68 (75.1th percentile), this represents normal volume ; whole brain volume measures 1,137,910 mm³, 16.8% above the reference mean. With a Z-score of 2.11 (98.3th percentile), this represents significant enlargement; entorhinal cortex volume measures 5,016 mm³, 36.6% above the reference mean. With a Z-score of 2.24 (98.8th percentile), this represents significant enlargement; fusiform gyrus volume measures 19,282 mm³, 13.3% above the reference mean. With a Z-score of 1.21 (88.8th percentile), this represents mild enlargement; middle temporal gyrus volume measures 21,549 mm³, 12.4% above the reference mean. With a Z-score of 1.08 (85.9th percentile), this represents mild enlargement. ",
  "text_data": "Age is 71.6 years. Gender is Female. Education: 18 years. Handedness: Right. Race: White. MMSE: 29.0. MoCA: 28.0. Logical Memory: 16.0. APOEε4 alleles: 0.0. Biomarker levels: Flobetaben (FBB): 0.96 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The brain volume measurements show normal to above-normal volumes in all regions, including the hippocampus and entorhinal cortex, which are typically affected in Alzheimer's. Cognitive scores (MMSE 29, MoCA 28) are within normal limits, and the absence of APOE4 further reduces Alzheimer's risk.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T08:42:55.211167"
}