{
  "ptid_time": "019_S_4367_2015-12-02",
  "img_path": "/data/qiuhui/data/adni/images/019_S_4367/2015-12-02/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 15,061 mm³, 32.6% below the reference mean. With a Z-score of -0.82 (20.7th percentile), this represents normal volume ; hippocampal volume measures 7,519 mm³, 2.2% below the reference mean. With a Z-score of -0.24 (40.4th percentile), this represents normal volume ; whole brain volume measures 1,093,340 mm³, 6.2% above the reference mean. With a Z-score of 0.78 (78.1th percentile), this represents normal volume ; entorhinal cortex volume measures 3,784 mm³, 2.8% below the reference mean. With a Z-score of -0.22 (41.4th percentile), this represents normal volume ; fusiform gyrus volume measures 17,725 mm³, 2.7% below the reference mean. With a Z-score of -0.30 (38.2th percentile), this represents normal volume ; middle temporal gyrus volume measures 17,880 mm³, 12.9% below the reference mean. With a Z-score of -1.14 (12.6th percentile), this represents mild atrophy. ",
  "text_data": "Age is 69.1 years. Gender is Female. Education: 18 years. MMSE: 30.0. MoCA: 28.0. Logical Memory: 18.0. APOEε4 alleles: 1.0. Biomarker levels: Florbetapir (AV45): 1.03 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** All brain volumes (ventricular, hippocampal, whole brain, entorhinal cortex, fusiform gyrus) are within normal ranges except for mild atrophy in the middle temporal gyrus. Cognitive scores (MMSE 30, MoCA 28) are normal, and amyloid PET (AV45) is negative.  \n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T01:05:31.352663"
}