{
  "ptid_time": "941_S_1194_2008-03-25",
  "img_path": "/data/qiuhui/data/adni/images/941_S_1194/2008-03-25/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 53,731 mm³, 14.3% above the reference mean. With a Z-score of 0.41 (66.1th percentile), this represents normal volume ; hippocampal volume measures 5,712 mm³, 18.0% below the reference mean. With a Z-score of -1.56 (6.0th percentile), this represents moderate atrophy; whole brain volume measures 949,802 mm³, 7.7% below the reference mean. With a Z-score of -1.01 (15.6th percentile), this represents mild atrophy; entorhinal cortex volume measures 3,954 mm³, 0.4% below the reference mean. With a Z-score of -0.02 (49.0th percentile), this represents normal volume ; fusiform gyrus volume measures 15,522 mm³, 14.1% below the reference mean. With a Z-score of -1.22 (11.1th percentile), this represents mild atrophy; middle temporal gyrus volume measures 16,977 mm³, 15.8% below the reference mean. With a Z-score of -1.42 (7.8th percentile), this represents mild atrophy. ",
  "text_data": "Age is 85.8 years. Gender is Male. Education: 18 years. MMSE: 30.0. Logical Memory: 8.0. Laboratory findings: MCH: 36.00 (profound elevated); Eosinophils: 0.73 (profound elevated); Eosinophils: 14.00 (profound elevated); RBC: 3.30 (profound reduced). APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** The hippocampal volume shows moderate atrophy (Z-score -1.56, 6th percentile), while whole brain, fusiform gyrus, and middle temporal gyrus exhibit mild atrophy. However, MMSE is intact (30/30), and there is no APOE4 risk allele. Ventricular and entorhinal cortex volumes are normal.  \n\n**Diagnosis:** **Mild Cognitive Impairment (MCI)**  \n**Confidence:** **Medium** (Structural atrophy suggests neurodegeneration, but preserved MMSE and lack of APOE4 make dementia less likely at this stage.)",
  "timestamp": "2025-07-26T17:25:39.742550"
}