{
  "ptid_time": "023_S_4448_2014-02-12",
  "img_path": "/data/qiuhui/data/adni/images/023_S_4448/2014-02-12/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 16,288 mm³, 27.1% below the reference mean. With a Z-score of -0.68 (24.9th percentile), this represents normal volume ; whole brain volume measures 1,063,790 mm³, 3.4% above the reference mean. With a Z-score of 0.42 (66.2th percentile), this represents normal volume ; entorhinal cortex volume measures 4,122 mm³, 5.9% above the reference mean. With a Z-score of 0.46 (67.6th percentile), this represents normal volume ; fusiform gyrus volume measures 18,875 mm³, 3.7% above the reference mean. With a Z-score of 0.41 (66.0th percentile), this represents normal volume ; middle temporal gyrus volume measures 22,741 mm³, 10.8% above the reference mean. With a Z-score of 0.96 (83.2th percentile), this represents normal volume . ",
  "text_data": "Age is 65.8 years. Gender is Female. Education: 16 years. MMSE: 29.0. MoCA: 27.0. Logical Memory: 14.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 1.04 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The brain volume measurements (ventricular, whole brain, entorhinal cortex, fusiform gyrus, and middle temporal gyrus) are all within normal ranges, with Z-scores and percentiles indicating no significant atrophy. Cognitive scores (MMSE 29, MoCA 27) are within normal limits, and amyloid PET (AV45) is normal. No APOE4 alleles further reduce Alzheimer's risk.  \n\nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T03:05:32.934639"
}