{
  "ptid_time": "126_S_5243_2020-08-12",
  "img_path": "/data/qiuhui/data/adni/images/126_S_5243/2020-08-12/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 30,414 mm³, 21.0% below the reference mean. With a Z-score of -0.50 (30.7th percentile), this represents normal volume ; hippocampal volume measures 8,374 mm³, 10.8% above the reference mean. With a Z-score of 1.05 (85.3th percentile), this represents mild enlargement; whole brain volume measures 1,015,170 mm³, 6.0% below the reference mean. With a Z-score of -0.77 (22.0th percentile), this represents normal volume ; entorhinal cortex volume measures 4,925 mm³, 20.1% above the reference mean. With a Z-score of 1.36 (91.4th percentile), this represents mild enlargement; fusiform gyrus volume measures 19,058 mm³, 1.2% above the reference mean. With a Z-score of 0.10 (54.0th percentile), this represents normal volume ; middle temporal gyrus volume measures 20,841 mm³, 2.3% below the reference mean. With a Z-score of -0.21 (41.7th percentile), this represents normal volume . ",
  "text_data": "Age is 78.0 years. Gender is Male. Education: 12 years. MMSE: 28.0. MoCA: 28.0. Logical Memory: 10.0. APOEε4 alleles: 1.0. Biomarker levels: Florbetapir (AV45): 1.01 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The brain volume measurements show normal or mildly enlarged structures, with no significant atrophy in key regions like the hippocampus or entorhinal cortex. Cognitive scores (MMSE 28, MoCA 28) are within the normal range, and amyloid PET (AV45) is normal, suggesting no significant neurodegenerative pathology.  \n\nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T12:53:41.239355"
}