{
  "ptid_time": "133_S_0912_2008-04-22",
  "img_path": "/data/qiuhui/data/adni/images/133_S_0912/2008-04-22/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 20,696 mm³, 26.3% below the reference mean. With a Z-score of -0.60 (27.4th percentile), this represents normal volume ; hippocampal volume measures 6,693 mm³, 5.9% below the reference mean. With a Z-score of -0.54 (29.3th percentile), this represents normal volume ; whole brain volume measures 932,165 mm³, 4.4% below the reference mean. With a Z-score of -0.55 (29.2th percentile), this represents normal volume ; entorhinal cortex volume measures 2,682 mm³, 27.0% below the reference mean. With a Z-score of -1.66 (4.9th percentile), this represents moderate atrophy; fusiform gyrus volume measures 15,138 mm³, 11.0% below the reference mean. With a Z-score of -1.00 (15.8th percentile), this represents mild atrophy; middle temporal gyrus volume measures 17,268 mm³, 9.9% below the reference mean. With a Z-score of -0.86 (19.5th percentile), this represents normal volume . ",
  "text_data": "Age is 75.4 years. Gender is Female. Education: 18 years. MMSE: 30.0. Laboratory findings: Neutrophils: 42.00 (significant reduced); Lymphocytes: 51.90 (profound elevated); Lymphocytes: 3.75 (profound elevated); Creatine Kinase: 211.00 (significant elevated). APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The entorhinal cortex shows moderate atrophy (Z-score -1.66, 4.9th percentile), which is a key early marker for Alzheimer’s pathology, while other regions (hippocampus, whole brain) remain within normal ranges. Despite this structural finding, the patient has a normal MMSE score (30/30) and no reported cognitive symptoms, suggesting no functional impairment.  \n\n**Diagnosis:** **CN (Cognitively Normal)**  \n**Confidence:** **Medium** (Atrophy in the entorhinal cortex raises concern for preclinical Alzheimer’s, but the absence of cognitive deficits supports a current CN diagnosis.)",
  "timestamp": "2025-07-26T15:27:50.854938"
}