{
  "ptid_time": "073_S_4155_2011-10-31",
  "img_path": "/data/qiuhui/data/adni/images/073_S_4155/2011-10-31/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 20,708 mm³, 26.2% below the reference mean. With a Z-score of -0.60 (27.4th percentile), this represents normal volume ; hippocampal volume measures 7,217 mm³, 1.4% above the reference mean. With a Z-score of 0.13 (55.3th percentile), this represents normal volume ; whole brain volume measures 936,922 mm³, 3.9% below the reference mean. With a Z-score of -0.49 (31.3th percentile), this represents normal volume ; entorhinal cortex volume measures 3,436 mm³, 6.5% below the reference mean. With a Z-score of -0.40 (34.6th percentile), this represents normal volume ; fusiform gyrus volume measures 17,198 mm³, 1.1% above the reference mean. With a Z-score of 0.10 (53.9th percentile), this represents normal volume ; middle temporal gyrus volume measures 18,649 mm³, 2.7% below the reference mean. With a Z-score of -0.24 (40.7th percentile), this represents normal volume . ",
  "text_data": "Age is 77.6 years. Gender is Female. Education: 14 years. Handedness: Right. Race: White. Medical history: Head, Eyes, Ears, Nose and Throat; Cardiovascular; Musculoskeletal; Gastrointestinal; Allergies or Drug Sensitivities; Major Surgical Procedures. MMSE: 28.0. MoCA: 22.0. Logical Memory: 14.0. Laboratory findings: LDH: 228.00 (significant elevated); Cholesterol (High Performance): 266.00 (significant elevated). APOEε4 alleles: 1.0. Biomarker levels: Florbetapir (AV45): 1.68 SUVR (profound elevated). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The brain volume measurements are all within normal ranges (Z-scores close to 0, percentiles near 50th), indicating no significant atrophy. However, the MoCA score of 22 suggests mild cognitive impairment, and the presence of APOE4 and elevated AV45 (amyloid PET) indicates a high risk for Alzheimer's pathology.  \nDiagnosis: MCI (Mild Cognitive Impairment)  \nConfidence: Medium  \n\n(Confidence is Medium because while the cognitive scores and biomarkers suggest MCI due to Alzheimer's, the lack of structural atrophy on MRI means progression may still be early.)",
  "timestamp": "2025-07-26T09:40:30.192934"
}