{
  "ptid_time": "014_S_4401_2014-02-13",
  "img_path": "/data/qiuhui/data/adni/images/014_S_4401/2014-02-13/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 20,928 mm³, 6.3% below the reference mean. With a Z-score of -0.16 (43.7th percentile), this represents normal volume ; whole brain volume measures 1,116,150 mm³, 8.5% above the reference mean. With a Z-score of 1.05 (85.4th percentile), this represents mild enlargement; entorhinal cortex volume measures 3,838 mm³, 1.4% below the reference mean. With a Z-score of -0.11 (45.6th percentile), this represents normal volume ; fusiform gyrus volume measures 18,666 mm³, 2.5% above the reference mean. With a Z-score of 0.28 (61.1th percentile), this represents normal volume ; middle temporal gyrus volume measures 25,229 mm³, 23.0% above the reference mean. With a Z-score of 2.04 (97.9th percentile), this represents significant enlargement. ",
  "text_data": "Age is 69.5 years. Gender is Female. Education: 20 years. MMSE: 30.0. MoCA: 30.0. Logical Memory: 13.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The brain volume measurements show normal or above-average values in key regions (ventricular, entorhinal cortex, fusiform gyrus, and middle temporal gyrus), with no significant atrophy. Cognitive scores (MMSE and MoCA) are both at the maximum, indicating no current cognitive impairment. The presence of one APOE4 allele increases Alzheimer's risk but does not confirm pathology.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-25T23:54:59.914911"
}