{
  "ptid_time": "010_S_0472_2006-11-22",
  "img_path": "/data/qiuhui/data/adni/images/010_S_0472/2006-11-22/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 42,098 mm³, 9.3% above the reference mean. With a Z-score of 0.22 (58.8th percentile), this represents normal volume ; hippocampal volume measures 7,358 mm³, 2.7% below the reference mean. With a Z-score of -0.26 (39.8th percentile), this represents normal volume ; whole brain volume measures 1,012,870 mm³, 6.2% below the reference mean. With a Z-score of -0.80 (21.2th percentile), this represents normal volume ; entorhinal cortex volume measures 5,119 mm³, 24.8% above the reference mean. With a Z-score of 1.68 (95.4th percentile), this represents moderate enlargement; fusiform gyrus volume measures 19,057 mm³, 1.2% above the reference mean. With a Z-score of 0.10 (53.9th percentile), this represents normal volume ; middle temporal gyrus volume measures 19,954 mm³, 6.5% below the reference mean. With a Z-score of -0.58 (28.0th percentile), this represents normal volume . ",
  "text_data": "Age is 72.0 years. Gender is Male. Education: 20 years. MMSE: 30.0. Logical Memory: 19.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** The brain volume measurements show mostly normal values, with only the entorhinal cortex showing moderate enlargement (Z-score 1.68, 95.4th percentile). The hippocampal volume is slightly below the mean but still within the normal range (Z-score -0.26). The MMSE score of 30 is optimal, and there is no APOE4 genetic risk factor.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-25T22:32:42.969481"
}