{
  "ptid_time": "041_S_0679_2008-08-07",
  "img_path": "/data/qiuhui/data/adni/images/041_S_0679/2008-08-07/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 18,419 mm³, 38.7% below the reference mean. With a Z-score of -0.92 (17.9th percentile), this represents normal volume ; hippocampal volume measures 7,912 mm³, 1.4% below the reference mean. With a Z-score of -0.14 (44.3th percentile), this represents normal volume ; whole brain volume measures 1,146,460 mm³, 1.1% above the reference mean. With a Z-score of 0.15 (55.9th percentile), this represents normal volume ; entorhinal cortex volume measures 4,382 mm³, 2.8% above the reference mean. With a Z-score of 0.19 (57.7th percentile), this represents normal volume ; fusiform gyrus volume measures 18,515 mm³, 7.0% below the reference mean. With a Z-score of -0.58 (28.0th percentile), this represents normal volume ; middle temporal gyrus volume measures 22,671 mm³, 1.2% above the reference mean. With a Z-score of 0.10 (53.8th percentile), this represents normal volume . ",
  "text_data": "Age is 64.9 years. Gender is Male. Education: 18 years. MMSE: 30.0. Logical Memory: 11.0. APOEε4 alleles: 0.0. Biomarker levels: Pittsburgh compound B: 1.28 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. The MMSE score of 30 is optimal, and the absence of APOE4 further reduces Alzheimer's risk.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T07:00:17.635210"
}