{
  "ptid_time": "035_S_4464_2014-01-06",
  "img_path": "/data/qiuhui/data/adni/images/035_S_4464/2014-01-06/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 26,140 mm³, 32.1% below the reference mean. With a Z-score of -0.77 (22.1th percentile), this represents normal volume ; hippocampal volume measures 8,725 mm³, 15.4% above the reference mean. With a Z-score of 1.50 (93.4th percentile), this represents moderate enlargement; whole brain volume measures 1,062,340 mm³, 1.6% below the reference mean. With a Z-score of -0.21 (41.9th percentile), this represents normal volume . ",
  "text_data": "Age is 72.4 years. Gender is Male. Education: 16 years. MMSE: 30.0. MoCA: 26.0. Logical Memory: 16.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The brain volume metrics (ventricular, hippocampal, and whole brain) are within normal ranges, with hippocampal volume even showing moderate enlargement. Cognitive scores (MMSE 30, MoCA 26) are normal for age, and APOE4 status (heterozygous) does not strongly indicate pathology in isolation.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T05:57:16.039077"
}