{
  "ptid_time": "018_S_4399_2012-05-02",
  "img_path": "/data/qiuhui/data/adni/images/018_S_4399/2012-05-02/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 20,546 mm³, 26.8% below the reference mean. With a Z-score of -0.61 (27.0th percentile), this represents normal volume ; whole brain volume measures 956,518 mm³, 1.9% below the reference mean. With a Z-score of -0.23 (40.7th percentile), this represents normal volume ; entorhinal cortex volume measures 3,320 mm³, 9.6% below the reference mean. With a Z-score of -0.59 (27.8th percentile), this represents normal volume ; fusiform gyrus volume measures 16,967 mm³, 0.3% below the reference mean. With a Z-score of -0.02 (49.0th percentile), this represents normal volume ; middle temporal gyrus volume measures 20,248 mm³, 5.6% above the reference mean. With a Z-score of 0.49 (68.7th percentile), this represents normal volume . ",
  "text_data": "Age is 78.4 years. Gender is Female. Education: 16 years. MMSE: 30.0. MoCA: 28.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: All brain volumes (ventricular, whole brain, entorhinal cortex, fusiform gyrus, and middle temporal gyrus) fall within normal ranges based on Z-scores and percentiles. Cognitive scores (MMSE 30, MoCA 28) are also within normal limits for age, with no indication of impairment.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T00:57:37.635426"
}