{
  "ptid_time": "037_S_4030_2017-09-08",
  "img_path": "/data/qiuhui/data/adni/images/037_S_4030/2017-09-08/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 88,031 mm³, 213.6% above the reference mean. With a Z-score of 4.89 (100.0th percentile), this represents profound enlargement; hippocampal volume measures 5,300 mm³, 25.5% below the reference mean. With a Z-score of -2.34 (1.0th percentile), this represents significant atrophy; whole brain volume measures 1,002,910 mm³, 2.9% above the reference mean. With a Z-score of 0.36 (64.2th percentile), this represents normal volume ; entorhinal cortex volume measures 2,317 mm³, 36.9% below the reference mean. With a Z-score of -2.27 (1.2th percentile), this represents significant atrophy; fusiform gyrus volume measures 15,259 mm³, 10.3% below the reference mean. With a Z-score of -0.94 (17.4th percentile), this represents normal volume ; middle temporal gyrus volume measures 14,701 mm³, 23.3% below the reference mean. With a Z-score of -2.02 (2.2th percentile), this represents significant atrophy. ",
  "text_data": "Age is 74.8 years. Gender is Female. Education: 12 years. MMSE: 9.0. MoCA: 6.0. Logical Memory: 0.0. APOEε4 alleles: 1.0. Biomarker levels: Florbetapir (AV45): 1.45 SUVR (significant elevated). ",
  "true_diagnosis": "Diagnosis: AD.",
  "gpt_diagnosis": "Reasoning: The data shows profound ventricular enlargement (Z-score 4.89) and significant atrophy in the hippocampus (Z-score -2.34), entorhinal cortex (Z-score -2.27), and middle temporal gyrus (Z-score -2.02), which are hallmark structural changes in Alzheimer's disease. The severe cognitive impairment (MMSE 9, MoCA 6) and elevated amyloid burden (AV45) further support this diagnosis.  \n\nDiagnosis: **Dementia** (likely Alzheimer’s disease)  \nConfidence: **High**",
  "timestamp": "2025-07-26T06:40:40.656743"
}