{
  "ptid_time": "072_S_2037_2014-09-02",
  "img_path": "/data/qiuhui/data/adni/images/072_S_2037/2014-09-02/t1.nii.gz",
  "img_finding": "Image findings: hippocampal volume measures 5,948 mm³, 21.3% below the reference mean. With a Z-score of -2.08 (1.9th percentile), this represents significant atrophy; whole brain volume measures 1,047,490 mm³, 3.0% below the reference mean. With a Z-score of -0.38 (35.1th percentile), this represents normal volume ; entorhinal cortex volume measures 2,576 mm³, 37.2% below the reference mean. With a Z-score of -2.52 (0.6th percentile), this represents significant atrophy; fusiform gyrus volume measures 16,224 mm³, 13.9% below the reference mean. With a Z-score of -1.18 (11.9th percentile), this represents mild atrophy; middle temporal gyrus volume measures 19,425 mm³, 9.0% below the reference mean. With a Z-score of -0.81 (21.0th percentile), this represents normal volume . ",
  "text_data": "Age is 79.8 years. Gender is Male. Education: 16 years. MMSE: 25.0. MoCA: 21.0. Logical Memory: 8.0. APOEε4 alleles: 1.0. Biomarker levels: Florbetapir (AV45): 1.39 SUVR (significant elevated). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The hippocampal and entorhinal cortex volumes show significant atrophy (Z-scores ≤ -2.0), which are hallmark biomarkers of Alzheimer's disease (AD). The MMSE (25) and MoCA (21) scores indicate mild cognitive impairment, and the elevated AV45 (amyloid PET) suggests amyloid pathology, further supporting AD.  \nDiagnosis: Dementia (likely Alzheimer’s disease)  \nConfidence: High",
  "timestamp": "2025-07-26T09:11:09.132888"
}