{
  "ptid_time": "033_S_0516_2007-06-08",
  "img_path": "/data/qiuhui/data/adni/images/033_S_0516/2007-06-08/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 23,005 mm³, 51.1% below the reference mean. With a Z-score of -1.48 (6.9th percentile), this represents mild atrophy; hippocampal volume measures 7,535 mm³, 8.1% above the reference mean. With a Z-score of 0.70 (75.9th percentile), this represents normal volume ; whole brain volume measures 1,069,390 mm³, 3.9% above the reference mean. With a Z-score of 0.51 (69.6th percentile), this represents normal volume ; entorhinal cortex volume measures 3,697 mm³, 6.9% below the reference mean. With a Z-score of -0.45 (32.7th percentile), this represents normal volume ; fusiform gyrus volume measures 17,621 mm³, 2.5% below the reference mean. With a Z-score of -0.21 (41.6th percentile), this represents normal volume ; middle temporal gyrus volume measures 19,247 mm³, 4.6% below the reference mean. With a Z-score of -0.41 (34.1th percentile), this represents normal volume . ",
  "text_data": "Age is 88.6 years. Gender is Male. Education: 15 years. MMSE: 28.0. Logical Memory: 16.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The ventricular volume shows mild atrophy, but hippocampal, whole brain, and other regional volumes are within normal ranges. The MMSE score of 28 is within normal limits, and the absence of APOE4 reduces genetic risk.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (due to mild ventricular atrophy but otherwise normal findings)",
  "timestamp": "2025-07-26T05:12:50.335265"
}