{
  "ptid_time": "037_S_0467_2008-05-19",
  "img_path": "/data/qiuhui/data/adni/images/037_S_0467/2008-05-19/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 39,615 mm³, 7.2% above the reference mean. With a Z-score of 0.19 (57.7th percentile), this represents normal volume ; hippocampal volume measures 5,881 mm³, 9.5% below the reference mean. With a Z-score of -0.76 (22.4th percentile), this represents normal volume ; whole brain volume measures 1,032,730 mm³, 11.3% above the reference mean. With a Z-score of 1.35 (91.2th percentile), this represents mild enlargement; entorhinal cortex volume measures 3,263 mm³, 5.8% below the reference mean. With a Z-score of -0.31 (37.8th percentile), this represents normal volume ; fusiform gyrus volume measures 16,804 mm³, 4.3% above the reference mean. With a Z-score of 0.32 (62.7th percentile), this represents normal volume ; middle temporal gyrus volume measures 19,357 mm³, 7.4% above the reference mean. With a Z-score of 0.66 (74.4th percentile), this represents normal volume . ",
  "text_data": "Age is 83.1 years. Gender is Female. Education: 12 years. MMSE: 28.0. Logical Memory: 2.0. Laboratory findings: Vitamin B12: 1921.00 (profound elevated); Total Bilirubin: 0.80 (significant elevated). APOEε4 alleles: 0.0. Biomarker levels: Pittsburgh compound B: 2.27 SUVR (moderate elevated). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** The hippocampal volume is slightly reduced (9.5% below mean, Z-score -0.76), but still within the normal range (22.4th percentile). Other brain regions, including the entorhinal cortex, are also within normal limits. The MMSE score of 28 is intact, and there is no APOE4 genetic risk factor.  \n\n**Diagnosis:** **CN (Cognitively Normal)**  \n**Confidence:** **High**",
  "timestamp": "2025-07-26T06:29:38.457380"
}