{
  "ptid_time": "003_S_4288_2019-09-12",
  "img_path": "/data/qiuhui/data/adni/images/003_S_4288/2019-09-12/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 38,666 mm³, 4.6% above the reference mean. With a Z-score of 0.12 (54.9th percentile), this represents normal volume ; hippocampal volume measures 6,627 mm³, 2.0% above the reference mean. With a Z-score of 0.16 (56.5th percentile), this represents normal volume ; whole brain volume measures 880,996 mm³, 5.1% below the reference mean. With a Z-score of -0.61 (27.1th percentile), this represents normal volume ; entorhinal cortex volume measures 3,941 mm³, 13.8% above the reference mean. With a Z-score of 0.75 (77.2th percentile), this represents normal volume ; fusiform gyrus volume measures 15,022 mm³, 6.8% below the reference mean. With a Z-score of -0.51 (30.6th percentile), this represents normal volume ; middle temporal gyrus volume measures 17,423 mm³, 3.4% below the reference mean. With a Z-score of -0.30 (38.2th percentile), this represents normal volume . ",
  "text_data": "Age is 80.5 years. Gender is Female. Education: 14 years. MMSE: 27.0. MoCA: 30.0. Logical Memory: 5.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "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. Cognitive assessments (MMSE: 27, MoCA: 30) are also within normal limits, and the absence of APOE4 further reduces Alzheimer's risk.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-25T20:51:29.925372"
}