{
  "ptid_time": "020_S_6566_2018-08-30",
  "img_path": "/data/qiuhui/data/adni/images/020_S_6566/2018-08-30/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 43,467 mm³, 12.9% above the reference mean. With a Z-score of 0.31 (62.1th percentile), this represents normal volume ; hippocampal volume measures 8,123 mm³, 7.5% above the reference mean. With a Z-score of 0.73 (76.7th percentile), this represents normal volume ; whole brain volume measures 1,137,780 mm³, 5.4% above the reference mean. With a Z-score of 0.70 (75.9th percentile), this represents normal volume ; entorhinal cortex volume measures 4,626 mm³, 12.8% above the reference mean. With a Z-score of 0.87 (80.8th percentile), this represents normal volume ; fusiform gyrus volume measures 21,731 mm³, 15.4% above the reference mean. With a Z-score of 1.31 (90.5th percentile), this represents mild enlargement; middle temporal gyrus volume measures 21,785 mm³, 2.1% above the reference mean. With a Z-score of 0.19 (57.5th percentile), this represents normal volume . ",
  "text_data": "Age is 72.8 years. Gender is Male. Education: 18 years. Handedness: Right. Race: White. MMSE: 29.0. MoCA: 28.0. Logical Memory: 17.0. APOEε4 alleles: 0.0. Biomarker levels: Flobetaben (FBB): 0.95 SUVR (mild reduced). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** All brain volumes (hippocampus, whole brain, entorhinal cortex, fusiform gyrus, middle temporal gyrus) are within normal or above-average ranges (Z-scores between -0.5 and +2.0). Cognitive scores (MMSE 29, MoCA 28) are unimpaired, and there is no APOE4 genetic risk factor. No structural or functional deficits are present.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T01:19:55.425903"
}