{
  "ptid_time": "128_S_2002_2019-07-08",
  "img_path": "/data/qiuhui/data/adni/images/128_S_2002/2019-07-08/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 17,257 mm³, 55.2% below the reference mean. With a Z-score of -1.32 (9.3th percentile), this represents mild atrophy; hippocampal volume measures 7,434 mm³, 1.7% below the reference mean. With a Z-score of -0.16 (43.6th percentile), this represents normal volume ; whole brain volume measures 1,067,330 mm³, 1.1% below the reference mean. With a Z-score of -0.15 (44.2th percentile), this represents normal volume ; entorhinal cortex volume measures 3,520 mm³, 14.2% below the reference mean. With a Z-score of -0.96 (16.8th percentile), this represents normal volume ; fusiform gyrus volume measures 19,966 mm³, 6.0% above the reference mean. With a Z-score of 0.51 (69.5th percentile), this represents normal volume ; middle temporal gyrus volume measures 21,843 mm³, 2.4% above the reference mean. With a Z-score of 0.21 (58.4th percentile), this represents normal volume . ",
  "text_data": "Age is 73.8 years. Gender is Male. Education: 16 years. MMSE: 30.0. MoCA: 28.0. Logical Memory: 14.0. 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, etc.). Cognitive scores (MMSE 30, MoCA 28) are intact, and there is no APOE4 genetic risk.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T13:57:24.952661"
}