{
  "ptid_time": "100_S_5096_2014-06-16",
  "img_path": "/data/qiuhui/data/adni/images/100_S_5096/2014-06-16/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 53,213 mm³, 13.2% above the reference mean. With a Z-score of 0.38 (64.9th percentile), this represents normal volume ; hippocampal volume measures 6,829 mm³, 2.0% below the reference mean. With a Z-score of -0.17 (43.2th percentile), this represents normal volume ; whole brain volume measures 1,104,280 mm³, 7.3% above the reference mean. With a Z-score of 0.96 (83.1th percentile), this represents normal volume ; entorhinal cortex volume measures 3,402 mm³, 14.3% below the reference mean. With a Z-score of -0.94 (17.5th percentile), this represents normal volume ; fusiform gyrus volume measures 19,381 mm³, 7.3% above the reference mean. With a Z-score of 0.63 (73.6th percentile), this represents normal volume ; middle temporal gyrus volume measures 18,641 mm³, 7.6% below the reference mean. With a Z-score of -0.68 (24.8th percentile), this represents normal volume . ",
  "text_data": "Age is 81.4 years. Gender is Male. Education: 20 years. MMSE: 29.0. MoCA: 25.0. Logical Memory: 7.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The brain volume measurements are largely within normal ranges, with only mild deviations (e.g., entorhinal cortex and middle temporal gyrus slightly below the mean but still within normal Z-scores). Cognitive scores (MMSE 29, MoCA 25) are strong for age, with no significant impairment. APOE4 carrier status increases Alzheimer's risk but does not confirm pathology.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (due to APOE4 carrier status and mild volumetric reductions, but strong cognitive performance supports normal classification)",
  "timestamp": "2025-07-26T11:26:49.887544"
}