{
  "ptid_time": "116_S_4453_2018-01-29",
  "img_path": "/data/qiuhui/data/adni/images/116_S_4453/2018-01-29/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 44,852 mm³, 16.4% above the reference mean. With a Z-score of 0.39 (65.3th percentile), this represents normal volume ; hippocampal volume measures 7,272 mm³, 3.8% below the reference mean. With a Z-score of -0.37 (35.5th percentile), this represents normal volume ; whole brain volume measures 1,031,460 mm³, 4.4% below the reference mean. With a Z-score of -0.58 (28.2th percentile), this represents normal volume ; entorhinal cortex volume measures 4,690 mm³, 14.4% above the reference mean. With a Z-score of 0.97 (83.5th percentile), this represents normal volume ; fusiform gyrus volume measures 20,905 mm³, 11.0% above the reference mean. With a Z-score of 0.93 (82.5th percentile), this represents normal volume ; middle temporal gyrus volume measures 19,096 mm³, 10.5% below the reference mean. With a Z-score of -0.94 (17.2th percentile), this represents normal volume . ",
  "text_data": "Age is 71.9 years. Gender is Male. Education: 16 years. MMSE: 29.0. MoCA: 27.0. Logical Memory: 14.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 0.97 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The brain volume measurements (ventricular, hippocampal, whole brain, entorhinal cortex, fusiform gyrus, and middle temporal gyrus) all fall within normal ranges based on Z-scores and percentiles. Cognitive assessments (MMSE: 29, MoCA: 27) are within normal limits, and amyloid PET (AV45) is normal. No APOE4 risk allele is present.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T12:11:45.695404"
}