{
  "ptid_time": "041_S_0898_2007-12-13",
  "img_path": "/data/qiuhui/data/adni/images/041_S_0898/2007-12-13/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 34,791 mm³, 5.9% below the reference mean. With a Z-score of -0.16 (43.7th percentile), this represents normal volume ; hippocampal volume measures 5,949 mm³, 8.4% below the reference mean. With a Z-score of -0.67 (25.0th percentile), this represents normal volume ; whole brain volume measures 958,822 mm³, 3.3% above the reference mean. With a Z-score of 0.40 (65.4th percentile), this represents normal volume ; entorhinal cortex volume measures 3,643 mm³, 5.2% above the reference mean. With a Z-score of 0.28 (61.1th percentile), this represents normal volume ; fusiform gyrus volume measures 16,700 mm³, 3.7% above the reference mean. With a Z-score of 0.28 (60.8th percentile), this represents normal volume ; middle temporal gyrus volume measures 19,240 mm³, 6.7% above the reference mean. With a Z-score of 0.60 (72.5th percentile), this represents normal volume . ",
  "text_data": "Age is 84.1 years. Gender is Female. Education: 12 years. MMSE: 30.0. Logical Memory: 15.0. APOEε4 alleles: 0.0. Biomarker levels: Pittsburgh compound B: 1.22 SUVR (mild reduced). ",
  "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. The MMSE score of 30 is intact, and there is no APOE4 genetic risk factor.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T07:01:59.146489"
}