{
  "ptid_time": "127_S_5228_2019-09-16",
  "img_path": "/data/qiuhui/data/adni/images/127_S_5228/2019-09-16/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 35,136 mm³, 4.9% below the reference mean. With a Z-score of -0.13 (44.7th percentile), this represents normal volume ; hippocampal volume measures 7,087 mm³, 9.1% above the reference mean. With a Z-score of 0.73 (76.8th percentile), this represents normal volume ; whole brain volume measures 953,593 mm³, 2.7% above the reference mean. With a Z-score of 0.33 (62.9th percentile), this represents normal volume ; entorhinal cortex volume measures 3,714 mm³, 7.3% above the reference mean. With a Z-score of 0.39 (65.2th percentile), this represents normal volume ; fusiform gyrus volume measures 19,284 mm³, 19.7% above the reference mean. With a Z-score of 1.48 (93.1th percentile), this represents mild enlargement; middle temporal gyrus volume measures 22,041 mm³, 22.3% above the reference mean. With a Z-score of 1.98 (97.6th percentile), this represents moderate enlargement. ",
  "text_data": "Age is 83.8 years. Gender is Female. Education: 15 years. MMSE: 29.0. MoCA: 28.0. Logical Memory: 17.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 1.00 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** All brain volumes (ventricular, hippocampal, whole brain, entorhinal cortex) are within normal ranges or even slightly enlarged, with no significant atrophy. Cognitive scores (MMSE 29, MoCA 28) are intact, and amyloid PET (AV45) is normal. No APOE4 risk allele is present.  \n\n**Diagnosis:** **CN (Cognitively Normal)**  \n**Confidence:** **High**",
  "timestamp": "2025-07-26T13:28:59.425457"
}