{
  "ptid_time": "057_S_0818_2008-09-24",
  "img_path": "/data/qiuhui/data/adni/images/057_S_0818/2008-09-24/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 13,085 mm³, 53.4% below the reference mean. With a Z-score of -1.22 (11.1th percentile), this represents mild atrophy; hippocampal volume measures 7,701 mm³, 8.2% above the reference mean. With a Z-score of 0.76 (77.5th percentile), this represents normal volume ; whole brain volume measures 961,269 mm³, 1.4% below the reference mean. With a Z-score of -0.17 (43.1th percentile), this represents normal volume ; entorhinal cortex volume measures 3,002 mm³, 18.3% below the reference mean. With a Z-score of -1.12 (13.1th percentile), this represents mild atrophy; fusiform gyrus volume measures 15,354 mm³, 9.8% below the reference mean. With a Z-score of -0.89 (18.7th percentile), this represents normal volume ; middle temporal gyrus volume measures 20,268 mm³, 5.7% above the reference mean. With a Z-score of 0.50 (69.1th percentile), this represents normal volume . ",
  "text_data": "Age is 76.0 years. Gender is Female. Education: 10 years. MMSE: 30.0. Logical Memory: 10.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The imaging shows mild atrophy in the ventricular volume and entorhinal cortex, but hippocampal and whole brain volumes are normal. The MMSE score of 30 is intact, and there is no APOE4 risk allele.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (mild atrophy in some regions could suggest early changes, but cognitive performance remains intact)",
  "timestamp": "2025-07-26T08:05:12.602724"
}