{
  "ptid_time": "135_S_6544_2018-08-10",
  "img_path": "/data/qiuhui/data/adni/images/135_S_6544/2018-08-10/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 27,941 mm³, 0.5% below the reference mean. With a Z-score of -0.01 (49.6th percentile), this represents normal volume ; hippocampal volume measures 6,710 mm³, 5.7% below the reference mean. With a Z-score of -0.52 (30.1th percentile), this represents normal volume ; whole brain volume measures 952,032 mm³, 2.3% below the reference mean. With a Z-score of -0.29 (38.5th percentile), this represents normal volume ; entorhinal cortex volume measures 3,745 mm³, 2.0% above the reference mean. With a Z-score of 0.12 (54.8th percentile), this represents normal volume ; fusiform gyrus volume measures 15,914 mm³, 6.5% below the reference mean. With a Z-score of -0.59 (27.8th percentile), this represents normal volume ; middle temporal gyrus volume measures 18,717 mm³, 2.4% below the reference mean. With a Z-score of -0.20 (41.9th percentile), this represents normal volume . ",
  "text_data": "Age is 77.3 years. Gender is Female. Education: 18 years. Handedness: Right. Race: White. MMSE: 30.0. MoCA: 27.0. Logical Memory: 10.0. APOEε4 alleles: 1.0. Biomarker levels: Flobetaben (FBB): 1.05 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: All brain volume measures (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 30, MoCA 27) are also within normal limits for age, with no significant impairment detected. The presence of one APOE4 allele increases Alzheimer's risk but does not confirm pathology in the absence of clinical or structural deficits.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T15:52:52.933432"
}