{
  "ptid_time": "941_S_6054_2017-07-28",
  "img_path": "/data/qiuhui/data/adni/images/941_S_6054/2017-07-28/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 35,962 mm³, 28.1% above the reference mean. With a Z-score of 0.64 (74.0th percentile), this represents normal volume ; hippocampal volume measures 6,733 mm³, 5.4% below the reference mean. With a Z-score of -0.49 (31.1th percentile), this represents normal volume ; whole brain volume measures 998,828 mm³, 2.5% above the reference mean. With a Z-score of 0.31 (62.3th percentile), this represents normal volume ; entorhinal cortex volume measures 3,271 mm³, 10.9% below the reference mean. With a Z-score of -0.67 (25.1th percentile), this represents normal volume ; fusiform gyrus volume measures 18,512 mm³, 8.8% above the reference mean. With a Z-score of 0.80 (78.9th percentile), this represents normal volume ; middle temporal gyrus volume measures 20,969 mm³, 9.4% above the reference mean. With a Z-score of 0.81 (79.2th percentile), this represents normal volume . ",
  "text_data": "Age is 78.6 years. Gender is Female. Education: 18 years. Handedness: Right. Race: White. MMSE: 30.0. MoCA: 27.0. Logical Memory: 13.0. APOEε4 alleles: 0.0. Biomarker levels: Flobetaben (FBB): 1.01 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The brain volume measures are all within normal ranges, with no significant atrophy in key regions like the hippocampus or entorhinal cortex. Cognitive scores (MMSE 30, MoCA 27) are also normal for age, and the absence of APOE4 further reduces Alzheimer's risk.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T17:45:00.875983"
}