{
  "ptid_time": "057_S_0934_2007-04-25",
  "img_path": "/data/qiuhui/data/adni/images/057_S_0934/2007-04-25/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 25,546 mm³, 9.0% below the reference mean. With a Z-score of -0.21 (41.8th percentile), this represents normal volume ; hippocampal volume measures 6,787 mm³, 4.6% below the reference mean. With a Z-score of -0.42 (33.6th percentile), this represents normal volume ; whole brain volume measures 898,401 mm³, 7.8% below the reference mean. With a Z-score of -0.98 (16.2th percentile), this represents normal volume ; entorhinal cortex volume measures 3,362 mm³, 8.5% below the reference mean. With a Z-score of -0.52 (30.2th percentile), this represents normal volume ; fusiform gyrus volume measures 18,047 mm³, 6.1% above the reference mean. With a Z-score of 0.55 (71.0th percentile), this represents normal volume ; middle temporal gyrus volume measures 18,054 mm³, 5.8% below the reference mean. With a Z-score of -0.51 (30.7th percentile), this represents normal volume . ",
  "text_data": "Age is 70.5 years. Gender is Female. Education: 10 years. MMSE: 28.0. 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 28 is within the normal range (≥26), and the absence of APOE4 alleles further reduces Alzheimer's risk.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T08:06:17.856788"
}