{
  "ptid_time": "032_S_6293_2018-05-07",
  "img_path": "/data/qiuhui/data/adni/images/032_S_6293/2018-05-07/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 26,507 mm³, 28.3% below the reference mean. With a Z-score of -0.76 (22.3th percentile), this represents normal volume ; hippocampal volume measures 6,881 mm³, 5.9% above the reference mean. With a Z-score of 0.48 (68.3th percentile), this represents normal volume ; whole brain volume measures 1,095,520 mm³, 18.0% above the reference mean. With a Z-score of 2.16 (98.5th percentile), this represents significant enlargement; entorhinal cortex volume measures 4,014 mm³, 15.9% above the reference mean. With a Z-score of 0.86 (80.5th percentile), this represents normal volume ; fusiform gyrus volume measures 19,677 mm³, 22.1% above the reference mean. With a Z-score of 1.66 (95.2th percentile), this represents moderate enlargement; middle temporal gyrus volume measures 23,734 mm³, 31.6% above the reference mean. With a Z-score of 2.82 (99.8th percentile), this represents significant enlargement. ",
  "text_data": "Age is 86.3 years. Gender is Female. Education: 20 years. MMSE: 30.0. MoCA: 27.0. Logical Memory: 19.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 1.17 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The brain volume measures show significant enlargement in whole brain, fusiform gyrus, and middle temporal gyrus, with normal volumes in ventricular, hippocampal, and entorhinal cortex regions. Cognitive scores (MMSE 30, MoCA 27) are within normal ranges for age, and amyloid PET (AV45) is normal. No APOE4 alleles further reduce Alzheimer's risk.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T05:08:45.729478"
}