{
  "ptid_time": "094_S_6485_2018-07-19",
  "img_path": "/data/qiuhui/data/adni/images/094_S_6485/2018-07-19/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 21,156 mm³, 24.6% below the reference mean. With a Z-score of -0.56 (28.6th percentile), this represents normal volume ; hippocampal volume measures 7,489 mm³, 5.3% above the reference mean. With a Z-score of 0.48 (68.5th percentile), this represents normal volume ; whole brain volume measures 1,006,130 mm³, 3.2% above the reference mean. With a Z-score of 0.41 (65.8th percentile), this represents normal volume ; entorhinal cortex volume measures 4,929 mm³, 34.2% above the reference mean. With a Z-score of 2.10 (98.2th percentile), this represents significant enlargement; fusiform gyrus volume measures 20,555 mm³, 20.8% above the reference mean. With a Z-score of 1.89 (97.1th percentile), this represents moderate enlargement; middle temporal gyrus volume measures 18,967 mm³, 1.1% below the reference mean. With a Z-score of -0.09 (46.3th percentile), this represents normal volume . ",
  "text_data": "Age is 71.5 years. Gender is Female. Education: 18 years. Handedness: Right. Race: White. MMSE: 29.0. MoCA: 26.0. Logical Memory: 16.0. APOEε4 alleles: 0.0. Biomarker levels: Flobetaben (FBB): 1.02 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The brain volume measurements (ventricular, hippocampal, whole brain, entorhinal cortex, fusiform gyrus, and middle temporal gyrus) are all within normal ranges or show enlargement, with no significant atrophy. Cognitive scores (MMSE 29, MoCA 26) are within normal limits for age, and the absence of APOE4 further reduces Alzheimer's risk.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T10:35:46.385779"
}