{
  "ptid_time": "128_S_1408_2008-09-19",
  "img_path": "/data/qiuhui/data/adni/images/128_S_1408/2008-09-19/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 43,951 mm³, 14.1% above the reference mean. With a Z-score of 0.34 (63.2th percentile), this represents normal volume ; hippocampal volume measures 8,398 mm³, 11.1% above the reference mean. With a Z-score of 1.08 (86.1th percentile), this represents mild enlargement; whole brain volume measures 1,141,380 mm³, 5.7% above the reference mean. With a Z-score of 0.75 (77.2th percentile), this represents normal volume ; entorhinal cortex volume measures 4,653 mm³, 13.5% above the reference mean. With a Z-score of 0.91 (82.0th percentile), this represents normal volume ; fusiform gyrus volume measures 17,718 mm³, 5.9% below the reference mean. With a Z-score of -0.51 (30.6th percentile), this represents normal volume ; middle temporal gyrus volume measures 20,380 mm³, 4.5% below the reference mean. With a Z-score of -0.40 (34.3th percentile), this represents normal volume . ",
  "text_data": "Age is 72.4 years. Gender is Male. Education: 16 years. MMSE: 30.0. Logical Memory: 19.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The brain volume measures are largely within normal ranges or even mildly enlarged (hippocampus), with no significant atrophy in key regions associated with Alzheimer's (e.g., hippocampus, entorhinal cortex). The MMSE score of 30 is perfect, and the absence of APOE4 alleles further reduces Alzheimer's risk.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T13:55:41.663042"
}