{
  "ptid_time": "057_S_0934_2007-10-17",
  "img_path": "/data/qiuhui/data/adni/images/057_S_0934/2007-10-17/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 24,982 mm³, 11.0% below the reference mean. With a Z-score of -0.25 (40.1th percentile), this represents normal volume ; hippocampal volume measures 7,206 mm³, 1.3% above the reference mean. With a Z-score of 0.12 (54.7th percentile), this represents normal volume ; whole brain volume measures 920,174 mm³, 5.6% below the reference mean. With a Z-score of -0.70 (24.1th percentile), this represents normal volume ; entorhinal cortex volume measures 3,306 mm³, 10.0% below the reference mean. With a Z-score of -0.61 (27.0th percentile), this represents normal volume ; fusiform gyrus volume measures 18,481 mm³, 8.6% above the reference mean. With a Z-score of 0.79 (78.4th percentile), this represents normal volume ; middle temporal gyrus volume measures 17,725 mm³, 7.5% below the reference mean. With a Z-score of -0.65 (25.7th percentile), this represents normal volume . ",
  "text_data": "Age is 71.0 years. Gender is Female. Education: 10 years. MMSE: 30.0. Logical Memory: 14.0. APOEε4 alleles: 0.0. ",
  "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. The MMSE score of 30 is optimal, and the absence of APOE4 alleles further reduces Alzheimer's risk.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T08:06:23.020892"
}