{
  "ptid_time": "029_S_4279_2014-04-21",
  "img_path": "/data/qiuhui/data/adni/images/029_S_4279/2014-04-21/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 47,339 mm³, 0.7% above the reference mean. With a Z-score of 0.02 (50.8th percentile), this represents normal volume ; hippocampal volume measures 6,943 mm³, 0.4% below the reference mean. With a Z-score of -0.03 (48.8th percentile), this represents normal volume ; whole brain volume measures 973,261 mm³, 5.4% below the reference mean. With a Z-score of -0.71 (23.8th percentile), this represents normal volume . ",
  "text_data": "Age is 85.7 years. Gender is Male. Education: 16 years. MMSE: 30.0. MoCA: 25.0. Logical Memory: 10.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The brain volume measurements (ventricular, hippocampal, and whole brain) are within normal ranges, with only slight deviations from the reference mean. The MMSE score of 30 is perfect, and the MoCA score of 25 is within the normal range (≥26 is typical for CN, but age and education can influence this). No APOE4 alleles further reduce Alzheimer's risk.  \n\nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (MoCA is borderline, but other markers strongly support normal cognition)",
  "timestamp": "2025-07-26T04:27:06.445346"
}