{
  "ptid_time": "010_S_0422_2006-11-30",
  "img_path": "/data/qiuhui/data/adni/images/010_S_0422/2006-11-30/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 19,815 mm³, 34.0% below the reference mean. With a Z-score of -0.81 (21.0th percentile), this represents normal volume ; hippocampal volume measures 8,446 mm³, 5.2% above the reference mean. With a Z-score of 0.52 (69.9th percentile), this represents normal volume ; whole brain volume measures 1,187,420 mm³, 4.7% above the reference mean. With a Z-score of 0.66 (74.5th percentile), this represents normal volume ; entorhinal cortex volume measures 4,396 mm³, 3.1% above the reference mean. With a Z-score of 0.22 (58.6th percentile), this represents normal volume ; fusiform gyrus volume measures 19,166 mm³, 3.7% below the reference mean. With a Z-score of -0.31 (37.8th percentile), this represents normal volume ; middle temporal gyrus volume measures 21,445 mm³, 4.3% below the reference mean. With a Z-score of -0.36 (36.1th percentile), this represents normal volume . ",
  "text_data": "Age is 61.6 years. Gender is Male. Education: 20 years. MMSE: 29.0. Logical Memory: 7.0. APOEε4 alleles: 0.0. Biomarker levels: Total tau: 242.60 pg/mL (normal ); Phosphorylated tau: 21.84 pg/mL (normal ). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** All brain volumes (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 29 is within the normal range (≥26), and both T-tau and P-tau levels are normal. There are no significant biomarkers or cognitive deficits suggestive of neurodegeneration.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-25T22:31:52.369831"
}