{
  "ptid_time": "010_S_0422_2007-03-27",
  "img_path": "/data/qiuhui/data/adni/images/010_S_0422/2007-03-27/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 20,435 mm³, 31.9% below the reference mean. With a Z-score of -0.76 (22.4th percentile), this represents normal volume ; hippocampal volume measures 8,269 mm³, 3.0% above the reference mean. With a Z-score of 0.30 (61.8th percentile), this represents normal volume ; whole brain volume measures 1,171,200 mm³, 3.2% above the reference mean. With a Z-score of 0.46 (67.6th percentile), this represents normal volume ; entorhinal cortex volume measures 3,890 mm³, 8.7% below the reference mean. With a Z-score of -0.61 (27.2th percentile), this represents normal volume ; fusiform gyrus volume measures 19,364 mm³, 2.7% below the reference mean. With a Z-score of -0.23 (41.0th percentile), this represents normal volume ; middle temporal gyrus volume measures 22,825 mm³, 1.8% above the reference mean. With a Z-score of 0.15 (56.0th percentile), this represents normal volume . ",
  "text_data": "Age is 62.1 years. Gender is Male. Education: 20 years. MMSE: 29.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** All brain volume measures (ventricular, hippocampal, whole brain, entorhinal cortex, fusiform gyrus, and middle temporal gyrus) fall within normal ranges based on Z-scores and percentiles. The MMSE score of 29 is within the normal range, and the absence of APOE4 alleles further reduces Alzheimer's risk.  \n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-25T22:31:59.975242"
}