{
  "ptid_time": "021_S_0276_2006-03-17",
  "img_path": "/data/qiuhui/data/adni/images/021_S_0276/2006-03-17/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 24,539 mm³, 36.3% below the reference mean. With a Z-score of -0.87 (19.2th percentile), this represents normal volume ; hippocampal volume measures 8,920 mm³, 18.0% above the reference mean. With a Z-score of 1.76 (96.0th percentile), this represents moderate enlargement; whole brain volume measures 1,187,200 mm³, 10.0% above the reference mean. With a Z-score of 1.30 (90.3th percentile), this represents mild enlargement; entorhinal cortex volume measures 4,620 mm³, 12.7% above the reference mean. With a Z-score of 0.86 (80.5th percentile), this represents normal volume ; fusiform gyrus volume measures 20,346 mm³, 8.0% above the reference mean. With a Z-score of 0.68 (75.2th percentile), this represents normal volume ; middle temporal gyrus volume measures 25,678 mm³, 20.3% above the reference mean. With a Z-score of 1.83 (96.6th percentile), this represents moderate enlargement. ",
  "text_data": "Age is 70.9 years. Gender is Male. Education: 18 years. Handedness: Left. Race: White. Medical history: Head, Eyes, Ears, Nose and Throat; Musculoskeletal; Renal-Genitourinary; Major Surgical Procedures. MMSE: 30.0. Logical Memory: 6.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The brain volume measurements show normal or above-average volumes in all regions, including the hippocampus and entorhinal cortex, which are typically affected in Alzheimer's disease. The MMSE score of 30 is perfect, and the absence of APOE4 alleles further reduces Alzheimer's risk.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T01:24:20.136975"
}