{
  "ptid_time": "123_S_0106_2006-08-01",
  "img_path": "/data/qiuhui/data/adni/images/123_S_0106/2006-08-01/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 44,543 mm³, 58.7% above the reference mean. With a Z-score of 1.34 (91.1th percentile), this represents mild enlargement; hippocampal volume measures 7,310 mm³, 2.7% above the reference mean. With a Z-score of 0.25 (59.9th percentile), this represents normal volume ; whole brain volume measures 1,138,720 mm³, 16.8% above the reference mean. With a Z-score of 2.12 (98.3th percentile), this represents significant enlargement; entorhinal cortex volume measures 4,548 mm³, 23.8% above the reference mean. With a Z-score of 1.46 (92.8th percentile), this represents mild enlargement; fusiform gyrus volume measures 17,137 mm³, 0.7% above the reference mean. With a Z-score of 0.07 (52.6th percentile), this represents normal volume ; middle temporal gyrus volume measures 21,857 mm³, 14.0% above the reference mean. With a Z-score of 1.22 (88.8th percentile), this represents mild enlargement. ",
  "text_data": "Age is 73.7 years. Gender is Female. Education: 15 years. MMSE: 30.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The brain volume data shows mild to significant enlargement in several regions (ventricular, whole brain, entorhinal cortex, middle temporal gyrus), while hippocampal and fusiform gyrus volumes are normal. The MMSE score of 30 is within the normal range, and the absence of APOE4 reduces genetic risk. No cognitive impairment is indicated clinically.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T12:23:22.359326"
}