{
  "ptid_time": "027_S_5288_2015-10-05",
  "img_path": "/data/qiuhui/data/adni/images/027_S_5288/2015-10-05/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 49,974 mm³, 35.2% above the reference mean. With a Z-score of 0.95 (82.9th percentile), this represents normal volume ; hippocampal volume measures 6,875 mm³, 5.9% above the reference mean. With a Z-score of 0.47 (68.0th percentile), this represents normal volume ; whole brain volume measures 985,060 mm³, 6.1% above the reference mean. With a Z-score of 0.74 (76.9th percentile), this represents normal volume ; entorhinal cortex volume measures 3,474 mm³, 0.3% above the reference mean. With a Z-score of 0.02 (50.7th percentile), this represents normal volume ; fusiform gyrus volume measures 19,179 mm³, 19.1% above the reference mean. With a Z-score of 1.43 (92.4th percentile), this represents mild enlargement; middle temporal gyrus volume measures 20,881 mm³, 15.8% above the reference mean. With a Z-score of 1.41 (92.0th percentile), this represents mild enlargement. ",
  "text_data": "Age is 83.9 years. Gender is Female. Education: 18 years. MMSE: 30.0. MoCA: 27.0. Logical Memory: 15.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 1.05 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** All brain volumes (ventricular, hippocampal, whole brain, entorhinal cortex) are within normal ranges, with some regions (fusiform gyrus, middle temporal gyrus) showing mild enlargement. Cognitive scores (MMSE 30, MoCA 27) are within normal limits for age, and amyloid PET (AV45) is normal. No APOE4 risk allele is present.  \n\n**Diagnosis:** **CN (Cognitively Normal)**  \n**Confidence:** **High**",
  "timestamp": "2025-07-26T04:11:51.139845"
}