{
  "ptid_time": "135_S_4723_2017-06-21",
  "img_path": "/data/qiuhui/data/adni/images/135_S_4723/2017-06-21/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 13,087 mm³, 53.4% below the reference mean. With a Z-score of -1.22 (11.1th percentile), this represents mild atrophy; hippocampal volume measures 7,251 mm³, 1.9% above the reference mean. With a Z-score of 0.18 (57.0th percentile), this represents normal volume ; whole brain volume measures 1,015,320 mm³, 4.2% above the reference mean. With a Z-score of 0.53 (70.0th percentile), this represents normal volume ; entorhinal cortex volume measures 4,074 mm³, 10.9% above the reference mean. With a Z-score of 0.67 (74.9th percentile), this represents normal volume ; fusiform gyrus volume measures 16,057 mm³, 5.6% below the reference mean. With a Z-score of -0.51 (30.5th percentile), this represents normal volume ; middle temporal gyrus volume measures 19,405 mm³, 1.2% above the reference mean. With a Z-score of 0.11 (54.2th percentile), this represents normal volume . ",
  "text_data": "Age is 74.4 years. Gender is Female. Education: 18 years. MMSE: 30.0. MoCA: 28.0. Logical Memory: 17.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 1.01 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The brain imaging shows mild ventricular atrophy (Z-score -1.22) but otherwise normal volumes in key regions (hippocampus, entorhinal cortex, fusiform gyrus, middle temporal gyrus). Cognitive scores (MMSE 30, MoCA 28) are intact, and amyloid PET (AV45) is normal, ruling out Alzheimer’s pathology.  \n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T15:45:55.758199"
}