{
  "ptid_time": "073_S_0089_2008-02-14",
  "img_path": "/data/qiuhui/data/adni/images/073_S_0089/2008-02-14/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 22,092 mm³, 26.4% below the reference mean. With a Z-score of -0.63 (26.5th percentile), this represents normal volume ; hippocampal volume measures 7,644 mm³, 4.8% below the reference mean. With a Z-score of -0.48 (31.7th percentile), this represents normal volume ; whole brain volume measures 1,064,620 mm³, 6.2% below the reference mean. With a Z-score of -0.87 (19.2th percentile), this represents normal volume ; entorhinal cortex volume measures 4,235 mm³, 0.7% below the reference mean. With a Z-score of -0.05 (48.2th percentile), this represents normal volume ; fusiform gyrus volume measures 21,305 mm³, 7.0% above the reference mean. With a Z-score of 0.58 (72.0th percentile), this represents normal volume ; middle temporal gyrus volume measures 23,426 mm³, 4.5% above the reference mean. With a Z-score of 0.37 (64.5th percentile), this represents normal volume . ",
  "text_data": "Age is 67.1 years. Gender is Male. Education: 20 years. MMSE: 30.0. Logical Memory: 16.0. 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": "2025-07-26T09:28:32.564594"
}