{
  "ptid_time": "013_S_1186_2008-02-07",
  "img_path": "/data/qiuhui/data/adni/images/013_S_1186/2008-02-07/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 35,868 mm³, 23.7% below the reference mean. With a Z-score of -0.69 (24.5th percentile), this represents normal volume ; hippocampal volume measures 7,068 mm³, 1.4% above the reference mean. With a Z-score of 0.12 (54.9th percentile), this represents normal volume ; whole brain volume measures 1,014,780 mm³, 1.4% below the reference mean. With a Z-score of -0.18 (42.7th percentile), this represents normal volume ; entorhinal cortex volume measures 3,793 mm³, 4.4% below the reference mean. With a Z-score of -0.29 (38.6th percentile), this represents normal volume ; fusiform gyrus volume measures 18,506 mm³, 2.4% above the reference mean. With a Z-score of 0.21 (58.4th percentile), this represents normal volume ; middle temporal gyrus volume measures 20,785 mm³, 3.0% above the reference mean. With a Z-score of 0.27 (60.7th percentile), this represents normal volume . ",
  "text_data": "Age is 84.2 years. Gender is Male. Education: 12 years. MMSE: 25.0. Logical Memory: 4.0. 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 25 is slightly below the typical cutoff of 26 for cognitive normality but is not strongly indicative of dementia, especially given the absence of APOE4 and normal structural findings.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (MMSE is borderline, but structural and genetic data support normality)",
  "timestamp": "2025-07-25T23:25:58.510472"
}