{
  "ptid_time": "127_S_4604_2013-04-10",
  "img_path": "/data/qiuhui/data/adni/images/127_S_4604/2013-04-10/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 47,711 mm³, 58.9% above the reference mean. With a Z-score of 1.40 (91.9th percentile), this represents mild enlargement; hippocampal volume measures 7,435 mm³, 7.4% below the reference mean. With a Z-score of -0.74 (23.1th percentile), this represents normal volume ; whole brain volume measures 1,210,540 mm³, 6.7% above the reference mean. With a Z-score of 0.95 (82.8th percentile), this represents normal volume . ",
  "text_data": "Age is 66.0 years. Gender is Male. Education: 19 years. MMSE: 30.0. MoCA: 30.0. Logical Memory: 18.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The ventricular volume shows mild enlargement (58.9% above mean, Z-score 1.40), but hippocampal and whole brain volumes are within normal ranges. Cognitive scores (MMSE 30, MoCA 30) are unimpaired, and APOE4 status (heterozygous) alone does not indicate pathology.  \nDiagnosis: **CN (Cognitively Normal)**  \nConfidence: **High**",
  "timestamp": "2025-07-26T13:19:16.498871"
}