{
  "ptid_time": "002_S_6009_2019-05-20",
  "img_path": "/data/qiuhui/data/adni/images/002_S_6009/2019-05-20/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 28,484 mm³, 5.1% below the reference mean. With a Z-score of -0.12 (45.1th percentile), this represents normal volume ; hippocampal volume measures 8,252 mm³, 2.8% above the reference mean. With a Z-score of 0.28 (61.0th percentile), this represents normal volume ; whole brain volume measures 1,121,420 mm³, 1.2% below the reference mean. With a Z-score of -0.16 (43.5th percentile), this represents normal volume ; entorhinal cortex volume measures 4,666 mm³, 9.5% above the reference mean. With a Z-score of 0.65 (74.4th percentile), this represents normal volume ; fusiform gyrus volume measures 18,957 mm³, 4.8% below the reference mean. With a Z-score of -0.40 (34.6th percentile), this represents normal volume ; middle temporal gyrus volume measures 24,484 mm³, 9.2% above the reference mean. With a Z-score of 0.76 (77.7th percentile), this represents normal volume . ",
  "text_data": "Age is 69.5 years. Gender is Male. Education: 16 years. MMSE: 30.0. MoCA: 30.0. Logical Memory: 15.0. APOEε4 alleles: 1.0. Biomarker levels: Florbetapir (AV45): 1.04 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: All brain volume measures (ventricular, hippocampal, whole brain, entorhinal cortex, fusiform gyrus, and middle temporal gyrus) fall within normal ranges based on Z-scores and percentiles. Cognitive assessments (MMSE and MoCA) are both at maximum scores (30.0), indicating no cognitive impairment. APOE4 status (heterozygous) is a risk factor but does not confirm pathology, and AV45 (amyloid PET) is normal, suggesting no significant amyloid deposition.  \n\nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-25T20:36:08.494566"
}