{
  "ptid_time": "041_S_0679_2009-07-30",
  "img_path": "/data/qiuhui/data/adni/images/041_S_0679/2009-07-30/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 19,091 mm³, 36.4% below the reference mean. With a Z-score of -0.87 (19.3th percentile), this represents normal volume ; hippocampal volume measures 8,010 mm³, 0.2% below the reference mean. With a Z-score of -0.02 (49.2th percentile), this represents normal volume ; whole brain volume measures 1,140,430 mm³, 0.5% above the reference mean. With a Z-score of 0.07 (52.9th percentile), this represents normal volume ; entorhinal cortex volume measures 4,486 mm³, 5.2% above the reference mean. With a Z-score of 0.36 (64.1th percentile), this represents normal volume ; fusiform gyrus volume measures 18,322 mm³, 8.0% below the reference mean. With a Z-score of -0.66 (25.4th percentile), this represents normal volume ; middle temporal gyrus volume measures 23,956 mm³, 6.9% above the reference mean. With a Z-score of 0.57 (71.5th percentile), this represents normal volume . ",
  "text_data": "Age is 65.9 years. Gender is Male. Education: 18 years. MMSE: 30.0. Logical Memory: 13.0. APOEε4 alleles: 0.0. Biomarker levels: Pittsburgh compound B: 1.29 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) are within normal ranges based on Z-scores and percentiles. The MMSE score of 30 is optimal, and the absence of APOE4 alleles further reduces Alzheimer's risk.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T07:00:22.624774"
}