{
  "ptid_time": "036_S_0672_2007-02-12",
  "img_path": "/data/qiuhui/data/adni/images/036_S_0672/2007-02-12/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 7,697 mm³, 65.5% below the reference mean. With a Z-score of -1.64 (5.0th percentile), this represents moderate atrophy; hippocampal volume measures 8,448 mm³, 9.9% above the reference mean. With a Z-score of 1.12 (86.8th percentile), this represents mild enlargement; whole brain volume measures 1,036,820 mm³, 0.7% above the reference mean. With a Z-score of 0.09 (53.7th percentile), this represents normal volume ; entorhinal cortex volume measures 4,686 mm³, 20.4% above the reference mean. With a Z-score of 1.58 (94.3th percentile), this represents moderate enlargement; fusiform gyrus volume measures 17,898 mm³, 1.7% below the reference mean. With a Z-score of -0.19 (42.3th percentile), this represents normal volume ; middle temporal gyrus volume measures 20,377 mm³, 0.7% below the reference mean. With a Z-score of -0.06 (47.5th percentile), this represents normal volume . ",
  "text_data": "Age is 62.5 years. Gender is Female. Education: 12 years. MMSE: 30.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The ventricular volume shows moderate atrophy (Z-score -1.64), which can be associated with neurodegenerative processes, but hippocampal, entorhinal cortex, and whole brain volumes are normal or even enlarged, and MMSE is intact (30/30). No APOE4 risk alleles are present.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (ventricular atrophy is notable, but other markers and cognitive performance suggest no impairment)",
  "timestamp": "2025-07-26T06:02:51.273814"
}