{
  "ptid_time": "020_S_1288_2010-03-12",
  "img_path": "/data/qiuhui/data/adni/images/020_S_1288/2010-03-12/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 11,927 mm³, 60.3% below the reference mean. With a Z-score of -1.43 (7.6th percentile), this represents mild atrophy; hippocampal volume measures 8,272 mm³, 3.1% above the reference mean. With a Z-score of 0.30 (62.0th percentile), this represents normal volume ; whole brain volume measures 1,209,800 mm³, 6.6% above the reference mean. With a Z-score of 0.94 (82.6th percentile), this represents normal volume ; entorhinal cortex volume measures 4,097 mm³, 3.9% below the reference mean. With a Z-score of -0.27 (39.4th percentile), this represents normal volume ; fusiform gyrus volume measures 21,288 mm³, 6.9% above the reference mean. With a Z-score of 0.58 (71.8th percentile), this represents normal volume ; middle temporal gyrus volume measures 23,600 mm³, 5.3% above the reference mean. With a Z-score of 0.44 (66.9th percentile), this represents normal volume . ",
  "text_data": "Age is 62.9 years. Gender is Male. Education: 20 years. MMSE: 30.0. Logical Memory: 17.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The brain imaging shows mild ventricular atrophy but otherwise normal volumes in key regions (hippocampus, entorhinal cortex, fusiform gyrus, middle temporal gyrus). The MMSE score is perfect (30/30), and there is no APOE4 genetic risk factor.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T01:13:27.332674"
}