{
  "ptid_time": "037_S_6144_2020-03-18",
  "img_path": "/data/qiuhui/data/adni/images/037_S_6144/2020-03-18/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 21,692 mm³, 2.9% below the reference mean. With a Z-score of -0.07 (47.1th percentile), this represents normal volume ; hippocampal volume measures 7,433 mm³, 3.3% below the reference mean. With a Z-score of -0.37 (35.7th percentile), this represents normal volume ; whole brain volume measures 951,821 mm³, 7.5% below the reference mean. With a Z-score of -0.94 (17.5th percentile), this represents normal volume ; entorhinal cortex volume measures 4,326 mm³, 11.1% above the reference mean. With a Z-score of 0.86 (80.6th percentile), this represents normal volume ; fusiform gyrus volume measures 16,560 mm³, 9.1% below the reference mean. With a Z-score of -1.02 (15.4th percentile), this represents mild atrophy; middle temporal gyrus volume measures 19,616 mm³, 4.4% below the reference mean. With a Z-score of -0.39 (34.8th percentile), this represents normal volume . ",
  "text_data": "Age is 67.0 years. Gender is Female. Education: 16 years. MMSE: 29.0. MoCA: 24.0. Logical Memory: 11.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The brain volume measurements show mostly normal values, with only mild atrophy in the fusiform gyrus. Cognitive scores (MMSE 29, MoCA 24) are within normal to borderline range, and the absence of APOE4 reduces genetic risk. No significant hippocampal or entorhinal atrophy is present, which would be expected in MCI or dementia.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** Medium (due to borderline MoCA score but otherwise normal findings)",
  "timestamp": "2025-07-26T06:53:49.096562"
}