{
  "ptid_time": "014_S_6076_2019-11-07",
  "img_path": "/data/qiuhui/data/adni/images/014_S_6076/2019-11-07/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 17,674 mm³, 20.9% below the reference mean. With a Z-score of -0.52 (30.1th percentile), this represents normal volume ; hippocampal volume measures 7,943 mm³, 3.4% above the reference mean. With a Z-score of 0.38 (64.7th percentile), this represents normal volume ; whole brain volume measures 1,119,940 mm³, 8.8% above the reference mean. With a Z-score of 1.10 (86.4th percentile), this represents mild enlargement; entorhinal cortex volume measures 3,942 mm³, 1.3% above the reference mean. With a Z-score of 0.10 (53.9th percentile), this represents normal volume ; fusiform gyrus volume measures 19,282 mm³, 5.9% above the reference mean. With a Z-score of 0.66 (74.6th percentile), this represents normal volume ; middle temporal gyrus volume measures 19,991 mm³, 2.6% below the reference mean. With a Z-score of -0.23 (40.9th percentile), this represents normal volume . ",
  "text_data": "Age is 60.7 years. Gender is Female. Education: 18 years. MMSE: 30.0. MoCA: 28.0. Logical Memory: 19.0. APOEε4 alleles: 1.0. Biomarker levels: Flobetaben (FBB): 1.03 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** All brain volumes (hippocampus, entorhinal cortex, fusiform gyrus, middle temporal gyrus) are within normal ranges or slightly above, with no significant atrophy. Cognitive scores (MMSE 30, MoCA 28) are intact, and there is no clinical evidence of impairment. The presence of one APOE4 allele increases Alzheimer’s risk but does not indicate current pathology.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-25T23:58:46.008297"
}