{
  "ptid_time": "019_S_4835_2014-08-07",
  "img_path": "/data/qiuhui/data/adni/images/019_S_4835/2014-08-07/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 41,396 mm³, 12.0% below the reference mean. With a Z-score of -0.35 (36.4th percentile), this represents normal volume ; hippocampal volume measures 9,126 mm³, 31.0% above the reference mean. With a Z-score of 2.68 (99.6th percentile), this represents significant enlargement; whole brain volume measures 1,178,100 mm³, 14.5% above the reference mean. With a Z-score of 1.90 (97.1th percentile), this represents moderate enlargement; entorhinal cortex volume measures 4,742 mm³, 19.5% above the reference mean. With a Z-score of 1.27 (89.9th percentile), this represents mild enlargement; fusiform gyrus volume measures 20,459 mm³, 13.2% above the reference mean. With a Z-score of 1.15 (87.4th percentile), this represents mild enlargement; middle temporal gyrus volume measures 24,382 mm³, 20.9% above the reference mean. With a Z-score of 1.87 (96.9th percentile), this represents moderate enlargement. ",
  "text_data": "Age is 81.3 years. Gender is Male. Education: 16 years. MMSE: 28.0. MoCA: 27.0. Logical Memory: 14.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 1.14 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The brain volume data shows significant enlargement in hippocampal volume (Z-score 2.68, 99.6th percentile) and moderate enlargement in whole brain and middle temporal gyrus volumes, with no atrophy observed. Cognitive scores (MMSE 28, MoCA 27) are within normal limits, and amyloid PET (AV45) is normal. APOE4-negative status further reduces Alzheimer's risk.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T01:08:40.236849"
}