{
  "ptid_time": "072_S_4390_2013-12-11",
  "img_path": "/data/qiuhui/data/adni/images/072_S_4390/2013-12-11/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 17,018 mm³, 39.4% below the reference mean. With a Z-score of -0.90 (18.4th percentile), this represents normal volume ; hippocampal volume measures 6,862 mm³, 3.5% below the reference mean. With a Z-score of -0.33 (37.2th percentile), this represents normal volume ; whole brain volume measures 914,078 mm³, 6.2% below the reference mean. With a Z-score of -0.78 (21.7th percentile), this represents normal volume ; entorhinal cortex volume measures 3,079 mm³, 16.2% below the reference mean. With a Z-score of -0.99 (16.0th percentile), this represents normal volume ; fusiform gyrus volume measures 16,189 mm³, 4.8% below the reference mean. With a Z-score of -0.44 (33.0th percentile), this represents normal volume ; middle temporal gyrus volume measures 19,489 mm³, 1.7% above the reference mean. With a Z-score of 0.14 (55.8th percentile), this represents normal volume . ",
  "text_data": "Age is 78.2 years. Gender is Female. Education: 12 years. MMSE: 30.0. MoCA: 28.0. Logical Memory: 6.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 1.10 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "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: 30, MoCA: 28) are also within normal limits, and there is no evidence of amyloid pathology (AV45: normal). APOE4-negative status further reduces Alzheimer's risk.  \n\nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T09:20:43.698260"
}