{
  "ptid_time": "062_S_1099_2007-06-06",
  "img_path": "/data/qiuhui/data/adni/images/062_S_1099/2007-06-06/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 25,663 mm³, 8.6% below the reference mean. With a Z-score of -0.20 (42.2th percentile), this represents normal volume ; whole brain volume measures 885,433 mm³, 9.2% below the reference mean. With a Z-score of -1.15 (12.5th percentile), this represents mild atrophy. ",
  "text_data": "Age is 79.7 years. Gender is Female. Education: 15 years. MMSE: 28.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The patient shows mild whole brain atrophy (Z-score -1.15, 12.5th percentile) but normal ventricular volume. MMSE score of 28 is within normal range, and APOE4 heterozygous status is a moderate risk factor. No significant cognitive impairment is reported.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium",
  "timestamp": "2025-07-26T08:19:04.322889"
}