{
  "ptid_time": "082_S_4224_2018-03-14",
  "img_path": "/data/qiuhui/data/adni/images/082_S_4224/2018-03-14/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 45,962 mm³, 2.2% below the reference mean. With a Z-score of -0.07 (47.4th percentile), this represents normal volume ; hippocampal volume measures 6,310 mm³, 9.4% below the reference mean. With a Z-score of -0.82 (20.7th percentile), this represents normal volume ; whole brain volume measures 1,055,430 mm³, 2.6% above the reference mean. With a Z-score of 0.33 (63.1th percentile), this represents normal volume ; entorhinal cortex volume measures 3,515 mm³, 11.4% below the reference mean. With a Z-score of -0.75 (22.7th percentile), this represents normal volume ; fusiform gyrus volume measures 17,736 mm³, 1.8% below the reference mean. With a Z-score of -0.16 (43.7th percentile), this represents normal volume ; middle temporal gyrus volume measures 20,307 mm³, 0.7% above the reference mean. With a Z-score of 0.06 (52.4th percentile), this represents normal volume . ",
  "text_data": "Age is 81.6 years. Gender is Male. Education: 20 years. MMSE: 29.0. MoCA: 27.0. Logical Memory: 10.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 1.03 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: All brain volumes (ventricular, hippocampal, whole brain, entorhinal cortex, fusiform gyrus, and middle temporal gyrus) fall within normal ranges based on Z-scores and percentiles. Cognitive scores (MMSE 29, MoCA 27) are also within normal limits for age, and amyloid PET (AV45) is normal. No significant atrophy or biomarker evidence of Alzheimer's pathology is present.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T10:06:21.210482"
}