{
  "ptid_time": "137_S_0301_2009-04-22",
  "img_path": "/data/qiuhui/data/adni/images/137_S_0301/2009-04-22/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 12,384 mm³, 55.9% below the reference mean. With a Z-score of -1.28 (10.0th percentile), this represents mild atrophy; hippocampal volume measures 7,546 mm³, 6.1% above the reference mean. With a Z-score of 0.56 (71.1th percentile), this represents normal volume ; whole brain volume measures 1,005,240 mm³, 3.1% above the reference mean. With a Z-score of 0.40 (65.4th percentile), this represents normal volume ; entorhinal cortex volume measures 4,163 mm³, 13.3% above the reference mean. With a Z-score of 0.82 (79.4th percentile), this represents normal volume ; fusiform gyrus volume measures 14,152 mm³, 16.8% below the reference mean. With a Z-score of -1.53 (6.3th percentile), this represents moderate atrophy; middle temporal gyrus volume measures 18,487 mm³, 3.6% below the reference mean. With a Z-score of -0.31 (37.9th percentile), this represents normal volume . ",
  "text_data": "Age is 76.4 years. Gender is Female. Education: 13 years. MMSE: 30.0. Logical Memory: 15.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The patient shows mild ventricular atrophy and moderate fusiform gyrus atrophy, but hippocampal, whole brain, entorhinal cortex, and middle temporal gyrus volumes are normal or above average. The MMSE score of 30 is intact, and there is no APOE4 risk allele.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (due to mixed findings of atrophy in some regions but normal cognition and no genetic risk)",
  "timestamp": "2025-07-26T16:08:32.875030"
}