{
  "ptid_time": "941_S_6570_2018-08-31",
  "img_path": "/data/qiuhui/data/adni/images/941_S_6570/2018-08-31/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 26,920 mm³, 30.1% below the reference mean. With a Z-score of -0.72 (23.5th percentile), this represents normal volume ; hippocampal volume measures 8,107 mm³, 7.2% above the reference mean. With a Z-score of 0.71 (76.0th percentile), this represents normal volume ; whole brain volume measures 1,144,390 mm³, 6.0% above the reference mean. With a Z-score of 0.78 (78.3th percentile), this represents normal volume ; entorhinal cortex volume measures 4,407 mm³, 7.5% above the reference mean. With a Z-score of 0.51 (69.4th percentile), this represents normal volume ; fusiform gyrus volume measures 22,391 mm³, 18.9% above the reference mean. With a Z-score of 1.61 (94.6th percentile), this represents moderate enlargement; middle temporal gyrus volume measures 25,501 mm³, 19.5% above the reference mean. With a Z-score of 1.75 (96.0th percentile), this represents moderate enlargement. ",
  "text_data": "Age is 71.2 years. Gender is Male. Education: 18 years. Handedness: Right. Race: White. MMSE: 30.0. MoCA: 26.0. Logical Memory: 13.0. APOEε4 alleles: 0.0. Biomarker levels: Flobetaben (FBB): 1.03 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: All brain volumes (ventricular, hippocampal, whole brain, entorhinal cortex) are within normal ranges or even above average, with no significant atrophy. Cognitive scores (MMSE 30, 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": "2025-07-26T17:49:28.571758"
}