{
  "ptid_time": "027_S_2245_2021-01-05",
  "img_path": "/data/qiuhui/data/adni/images/027_S_2245/2021-01-05/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 24,650 mm³, 10.4% above the reference mean. With a Z-score of 0.26 (60.2th percentile), this represents normal volume ; hippocampal volume measures 7,163 mm³, 6.8% below the reference mean. With a Z-score of -0.76 (22.3th percentile), this represents normal volume ; whole brain volume measures 976,882 mm³, 5.1% below the reference mean. With a Z-score of -0.63 (26.4th percentile), this represents normal volume ; entorhinal cortex volume measures 4,154 mm³, 6.7% above the reference mean. With a Z-score of 0.52 (69.8th percentile), this represents normal volume ; fusiform gyrus volume measures 17,222 mm³, 5.4% below the reference mean. With a Z-score of -0.61 (27.1th percentile), this represents normal volume ; middle temporal gyrus volume measures 20,759 mm³, 1.2% above the reference mean. With a Z-score of 0.10 (54.1th percentile), this represents normal volume . ",
  "text_data": "Age is 67.0 years. Gender is Female. Education: 20 years. MMSE: 30.0. MoCA: 27.0. Logical Memory: 6.0. APOEε4 alleles: 2.0. Biomarker levels: Florbetapir (AV45): 1.17 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The brain volume measurements are all within normal ranges (Z-scores between -0.76 and +0.52), with no significant atrophy in key regions like the hippocampus or entorhinal cortex. Cognitive scores (MMSE 30, MoCA 27) are normal, and amyloid PET (AV45) is negative, despite the presence of two APOE4 alleles.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T03:55:22.840430"
}