{
  "ptid_time": "128_S_2123_2018-08-24",
  "img_path": "/data/qiuhui/data/adni/images/128_S_2123/2018-08-24/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 35,374 mm³, 26.0% above the reference mean. With a Z-score of 0.60 (72.4th percentile), this represents normal volume ; hippocampal volume measures 7,248 mm³, 1.9% above the reference mean. With a Z-score of 0.17 (56.8th percentile), this represents normal volume ; whole brain volume measures 1,099,140 mm³, 12.8% above the reference mean. With a Z-score of 1.61 (94.6th percentile), this represents moderate enlargement; entorhinal cortex volume measures 4,279 mm³, 16.5% above the reference mean. With a Z-score of 1.01 (84.4th percentile), this represents mild enlargement; fusiform gyrus volume measures 18,929 mm³, 11.3% above the reference mean. With a Z-score of 1.02 (84.7th percentile), this represents mild enlargement; middle temporal gyrus volume measures 23,473 mm³, 22.5% above the reference mean. With a Z-score of 1.95 (97.4th percentile), this represents moderate enlargement. ",
  "text_data": "Age is 71.4 years. Gender is Female. Education: 18 years. MMSE: 29.0. MoCA: 30.0. Logical Memory: 18.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 1.09 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The brain volume measurements show normal to mildly/moderately enlarged structures, with no significant atrophy in key regions like the hippocampus. Cognitive scores (MMSE 29, MoCA 30) are intact, and amyloid PET (AV45) is normal. APOE4-negative status further reduces Alzheimer's risk.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T13:59:32.085017"
}