{
  "ptid_time": "127_S_0393_2006-05-24",
  "img_path": "/data/qiuhui/data/adni/images/127_S_0393/2006-05-24/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 44,746 mm³, 21.1% above the reference mean. With a Z-score of 0.57 (71.5th percentile), this represents normal volume ; hippocampal volume measures 6,177 mm³, 4.9% below the reference mean. With a Z-score of -0.39 (34.7th percentile), this represents normal volume ; whole brain volume measures 916,427 mm³, 1.3% below the reference mean. With a Z-score of -0.15 (44.0th percentile), this represents normal volume ; entorhinal cortex volume measures 3,459 mm³, 0.1% below the reference mean. With a Z-score of -0.01 (49.8th percentile), this represents normal volume ; fusiform gyrus volume measures 17,458 mm³, 8.4% above the reference mean. With a Z-score of 0.63 (73.5th percentile), this represents normal volume ; middle temporal gyrus volume measures 18,855 mm³, 4.6% above the reference mean. With a Z-score of 0.41 (65.8th percentile), this represents normal volume . ",
  "text_data": "Age is 86.2 years. Gender is Female. Education: 16 years. Handedness: Right. Race: White. Medical history: Head, Eyes, Ears, Nose and Throat; Cardiovascular; Musculoskeletal; Endocrine-Metabolic; Gastrointestinal; Major Surgical Procedures. MMSE: 28.0. Logical Memory: 6.0. APOEε4 alleles: 0.0. ",
  "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. The MMSE score of 28/30 is within the normal range for cognitive function, and the absence of APOE4 further reduces Alzheimer's risk.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T12:59:16.954378"
}