{
  "ptid_time": "002_S_6053_2017-07-18",
  "img_path": "/data/qiuhui/data/adni/images/002_S_6053/2017-07-18/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 44,062 mm³, 46.7% above the reference mean. With a Z-score of 1.11 (86.7th percentile), this represents mild enlargement; hippocampal volume measures 9,258 mm³, 15.3% above the reference mean. With a Z-score of 1.53 (93.7th percentile), this represents moderate enlargement; whole brain volume measures 1,250,170 mm³, 10.2% above the reference mean. With a Z-score of 1.44 (92.5th percentile), this represents mild enlargement; entorhinal cortex volume measures 5,211 mm³, 22.2% above the reference mean. With a Z-score of 1.54 (93.8th percentile), this represents moderate enlargement; fusiform gyrus volume measures 23,573 mm³, 18.4% above the reference mean. With a Z-score of 1.53 (93.7th percentile), this represents moderate enlargement; middle temporal gyrus volume measures 24,360 mm³, 8.7% above the reference mean. With a Z-score of 0.72 (76.3th percentile), this represents normal volume . ",
  "text_data": "Age is 65.7 years. Gender is Male. Education: 16 years. Handedness: Right. Race: White. MMSE: 30.0. MoCA: 26.0. Logical Memory: 14.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 1.00 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The brain volume measures show enlargement across multiple regions (hippocampus, entorhinal cortex, fusiform gyrus) with Z-scores in the 93rd percentile or higher, which is atypical for Alzheimer's disease where atrophy is expected. Cognitive scores (MMSE 30, MoCA 26) are within normal limits, and amyloid PET (AV45) is normal, ruling out Alzheimer's pathology.  \nDiagnosis: CN (Cognitively Normal)  \nConf",
  "timestamp": "2025-07-25T20:36:28.504892"
}