{
  "ptid_time": "036_S_0576_2006-12-05",
  "img_path": "/data/qiuhui/data/adni/images/036_S_0576/2006-12-05/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 33,231 mm³, 13.7% below the reference mean. With a Z-score of -0.33 (37.1th percentile), this represents normal volume ; hippocampal volume measures 7,296 mm³, 3.5% below the reference mean. With a Z-score of -0.34 (36.7th percentile), this represents normal volume ; whole brain volume measures 1,112,990 mm³, 3.1% above the reference mean. With a Z-score of 0.40 (65.7th percentile), this represents normal volume ; entorhinal cortex volume measures 4,517 mm³, 10.2% above the reference mean. With a Z-score of 0.69 (75.4th percentile), this represents normal volume ; fusiform gyrus volume measures 20,778 mm³, 10.3% above the reference mean. With a Z-score of 0.88 (81.0th percentile), this represents normal volume ; middle temporal gyrus volume measures 22,447 mm³, 5.2% above the reference mean. With a Z-score of 0.47 (68.0th percentile), this represents normal volume . ",
  "text_data": "Age is 78.0 years. Gender is Male. Education: 14 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, with Z-scores close to or above the mean. 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": "2025-07-26T06:01:09.194155"
}