{
  "ptid_time": "137_S_0301_2007-05-07",
  "img_path": "/data/qiuhui/data/adni/images/137_S_0301/2007-05-07/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 11,449 mm³, 59.2% below the reference mean. With a Z-score of -1.36 (8.8th percentile), this represents mild atrophy; hippocampal volume measures 7,876 mm³, 10.7% above the reference mean. With a Z-score of 0.98 (83.7th percentile), this represents normal volume ; whole brain volume measures 1,024,720 mm³, 5.1% above the reference mean. With a Z-score of 0.65 (74.1th percentile), this represents normal volume ; entorhinal cortex volume measures 3,870 mm³, 5.4% above the reference mean. With a Z-score of 0.33 (62.9th percentile), this represents normal volume ; fusiform gyrus volume measures 15,855 mm³, 6.8% below the reference mean. With a Z-score of -0.62 (26.8th percentile), this represents normal volume ; middle temporal gyrus volume measures 19,242 mm³, 0.4% above the reference mean. With a Z-score of 0.03 (51.3th percentile), this represents normal volume . ",
  "text_data": "Age is 74.4 years. Gender is Female. Education: 13 years. MMSE: 28.0. Logical Memory: 19.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** The patient shows mild ventricular enlargement (suggesting mild atrophy), but all other brain volumes, including the hippocampus, are within normal ranges. The MMSE score of 28 is within normal limits, and there is no APOE4 genetic risk factor.  \n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** Medium (mild ventricular enlargement could be age-related, but no other significant structural or cognitive deficits are present)",
  "timestamp": "2025-07-26T16:08:22.881482"
}