{
  "ptid_time": "094_S_6269_2018-03-27",
  "img_path": "/data/qiuhui/data/adni/images/094_S_6269/2018-03-27/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 20,902 mm³, 25.5% below the reference mean. With a Z-score of -0.58 (27.9th percentile), this represents normal volume ; hippocampal volume measures 6,929 mm³, 2.6% below the reference mean. With a Z-score of -0.24 (40.5th percentile), this represents normal volume ; whole brain volume measures 997,734 mm³, 2.4% above the reference mean. With a Z-score of 0.30 (61.7th percentile), this represents normal volume ; entorhinal cortex volume measures 4,558 mm³, 24.1% above the reference mean. With a Z-score of 1.48 (93.0th percentile), this represents mild enlargement; fusiform gyrus volume measures 18,901 mm³, 11.1% above the reference mean. With a Z-score of 1.01 (84.4th percentile), this represents mild enlargement; middle temporal gyrus volume measures 17,816 mm³, 7.1% below the reference mean. With a Z-score of -0.61 (27.0th percentile), this represents normal volume . ",
  "text_data": "Age is 70.2 years. Gender is Female. Education: 16 years. Handedness: Right. Race: White. MMSE: 29.0. MoCA: 28.0. Logical Memory: 15.0. APOEε4 alleles: 0.0. Biomarker levels: Flobetaben (FBB): 1.09 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** The brain volume measurements are largely within normal ranges, with only mild enlargement noted in the entorhinal cortex and fusiform gyrus. Cognitive scores (MMSE 29, MoCA 28) are well within the normal range, and there is no APOE4 genetic risk factor.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T10:35:04.852369"
}