{
  "ptid_time": "137_S_4351_2012-06-21",
  "img_path": "/data/qiuhui/data/adni/images/137_S_4351/2012-06-21/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 25,273 mm³, 13.1% above the reference mean. With a Z-score of 0.33 (62.9th percentile), this represents normal volume ; hippocampal volume measures 7,063 mm³, 8.1% below the reference mean. With a Z-score of -0.91 (18.2th percentile), this represents normal volume ; whole brain volume measures 1,019,200 mm³, 1.0% below the reference mean. With a Z-score of -0.12 (45.2th percentile), this represents normal volume ; entorhinal cortex volume measures 4,109 mm³, 5.6% above the reference mean. With a Z-score of 0.43 (66.6th percentile), this represents normal volume ; fusiform gyrus volume measures 17,484 mm³, 4.0% below the reference mean. With a Z-score of -0.45 (32.7th percentile), this represents normal volume ; middle temporal gyrus volume measures 22,262 mm³, 8.5% above the reference mean. With a Z-score of 0.75 (77.5th percentile), this represents normal volume . ",
  "text_data": "Age is 68.3 years. Gender is Female. Education: 16 years. MMSE: 30.0. MoCA: 27.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: All brain volumes (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 30 is normal, and the MoCA score of 27 is slightly below the typical cutoff of 26 for MCI but still within the expected range for normal aging. The presence of one APOE4 allele increases Alzheimer's risk but does not confirm pathology.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (due to the slightly reduced MoCA score, though all other markers are normal",
  "timestamp": "2025-07-26T16:31:30.219125"
}