{
  "ptid_time": "021_S_0231_2008-03-12",
  "img_path": "/data/qiuhui/data/adni/images/021_S_0231/2008-03-12/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 38,712 mm³, 28.9% above the reference mean. With a Z-score of 0.69 (75.4th percentile), this represents normal volume ; hippocampal volume measures 7,430 mm³, 7.4% below the reference mean. With a Z-score of -0.74 (22.9th percentile), this represents normal volume ; whole brain volume measures 1,030,420 mm³, 9.2% below the reference mean. With a Z-score of -1.30 (9.7th percentile), this represents mild atrophy; entorhinal cortex volume measures 3,670 mm³, 13.9% below the reference mean. With a Z-score of -0.96 (16.8th percentile), this represents normal volume ; fusiform gyrus volume measures 16,147 mm³, 18.9% below the reference mean. With a Z-score of -1.57 (5.8th percentile), this represents moderate atrophy; middle temporal gyrus volume measures 18,706 mm³, 16.5% below the reference mean. With a Z-score of -1.36 (8.7th percentile), this represents mild atrophy. ",
  "text_data": "Age is 62.3 years. Gender is Male. Education: 18 years. MMSE: 25.0. Logical Memory: 0.0. Laboratory findings: Total Protein: 7.90 (significant elevated); Albumin: 5.00 (profound elevated). APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: AD.",
  "gpt_diagnosis": "**Reasoning:** The patient shows mild to moderate atrophy in whole brain, fusiform gyrus, and middle temporal gyrus volumes, with hippocampal volume slightly below the reference mean but still within normal range. The MMSE score of 25 is borderline, but no significant cognitive impairment is evident. The absence of APOE4 reduces genetic risk for Alzheimer's.  \n\n**Diagnosis:** **Mild Cognitive Impairment (MCI)**  \n**Confidence:** **Medium** (due to borderline MMSE and structural changes, but no clear dementia-level deficits)",
  "timestamp": "2025-07-26T01:23:09.534929"
}