{
  "ptid_time": "019_S_4367_2012-11-19",
  "img_path": "/data/qiuhui/data/adni/images/019_S_4367/2012-11-19/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 13,760 mm³, 38.4% below the reference mean. With a Z-score of -0.96 (16.8th percentile), this represents normal volume ; hippocampal volume measures 7,822 mm³, 1.8% above the reference mean. With a Z-score of 0.20 (58.0th percentile), this represents normal volume ; whole brain volume measures 1,107,940 mm³, 7.7% above the reference mean. With a Z-score of 0.95 (83.0th percentile), this represents normal volume ; entorhinal cortex volume measures 4,141 mm³, 6.4% above the reference mean. With a Z-score of 0.49 (68.9th percentile), this represents normal volume ; fusiform gyrus volume measures 17,815 mm³, 2.2% below the reference mean. With a Z-score of -0.24 (40.3th percentile), this represents normal volume ; middle temporal gyrus volume measures 18,607 mm³, 9.3% below the reference mean. With a Z-score of -0.83 (20.4th percentile), this represents normal volume . ",
  "text_data": "Age is 66.1 years. Gender is Female. Education: 18 years. MMSE: 27.0. MoCA: 26.0. Logical Memory: 15.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: All brain volume measures (ventricular, hippocampal, whole brain, entorhinal cortex, fusiform gyrus, and middle temporal gyrus) fall within normal ranges based on Z-scores and percentiles. Cognitive scores (MMSE: 27, MoCA: 26) are also within normal limits for age, with no significant impairment detected. The presence of one APOE4 allele increases Alzheimer's risk but does not indicate current pathology.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T01:05:22.032673"
}