{
  "ptid_time": "126_S_4896_2018-08-07",
  "img_path": "/data/qiuhui/data/adni/images/126_S_4896/2018-08-07/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 44,932 mm³, 16.7% above the reference mean. With a Z-score of 0.40 (65.5th percentile), this represents normal volume ; hippocampal volume measures 7,147 mm³, 5.5% below the reference mean. With a Z-score of -0.53 (29.7th percentile), this represents normal volume ; whole brain volume measures 1,185,090 mm³, 9.8% above the reference mean. With a Z-score of 1.27 (89.8th percentile), this represents mild enlargement; entorhinal cortex volume measures 3,930 mm³, 4.2% below the reference mean. With a Z-score of -0.28 (38.9th percentile), this represents normal volume ; fusiform gyrus volume measures 20,059 mm³, 6.5% above the reference mean. With a Z-score of 0.55 (70.9th percentile), this represents normal volume ; middle temporal gyrus volume measures 22,466 mm³, 5.3% above the reference mean. With a Z-score of 0.47 (68.3th percentile), this represents normal volume . ",
  "text_data": "Age is 74.1 years. Gender is Male. Education: 12 years. MMSE: 29.0. MoCA: 23.0. Logical Memory: 3.0. APOEε4 alleles: 1.0. Biomarker levels: Florbetapir (AV45): 0.95 SUVR (mild reduced). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The brain volume measurements are largely within normal ranges, with only mild deviations (e.g., hippocampal volume 5.5% below mean, entorhinal cortex 4.2% below mean). The MMSE score of 29 is normal, but the MoCA score of 23 suggests mild cognitive impairment (MCI). The presence of APOE4 and mild amyloid burden (AV45) supports a neurodegenerative process.  \n\nDiagnosis: MCI  \nConfidence: Medium",
  "timestamp": "2025-07-26T12:52:05.594514"
}