{
  "ptid_time": "067_S_6138_2018-06-08",
  "img_path": "/data/qiuhui/data/adni/images/067_S_6138/2018-06-08/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 20,835 mm³, 6.7% below the reference mean. With a Z-score of -0.17 (43.3th percentile), this represents normal volume ; hippocampal volume measures 7,508 mm³, 2.3% below the reference mean. With a Z-score of -0.26 (39.9th percentile), this represents normal volume ; whole brain volume measures 965,266 mm³, 6.2% below the reference mean. With a Z-score of -0.77 (22.0th percentile), this represents normal volume ; entorhinal cortex volume measures 4,225 mm³, 8.5% above the reference mean. With a Z-score of 0.66 (74.6th percentile), this represents normal volume ; fusiform gyrus volume measures 20,196 mm³, 10.9% above the reference mean. With a Z-score of 1.23 (89.0th percentile), this represents mild enlargement; middle temporal gyrus volume measures 20,260 mm³, 1.3% below the reference mean. With a Z-score of -0.11 (45.5th percentile), this represents normal volume . ",
  "text_data": "Age is 68.9 years. Gender is Female. Education: 17 years. Handedness: Right. Race: White. MMSE: 30.0. MoCA: 27.0. Logical Memory: 12.0. APOEε4 alleles: 0.0. Biomarker levels: Flobetaben (FBB): 0.99 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: All brain volume measures (ventricular, hippocampal, whole brain, entorhinal cortex, middle temporal gyrus) fall within normal ranges or show mild enlargement (fusiform gyrus), with no significant atrophy. Cognitive scores (MMSE 30, MoCA 27) are within normal limits, and the absence of APOE4 further reduces Alzheimer's risk.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T08:43:09.395240"
}