{
  "ptid_time": "116_S_1249_2012-02-16",
  "img_path": "/data/qiuhui/data/adni/images/116_S_1249/2012-02-16/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 23,914 mm³, 14.8% below the reference mean. With a Z-score of -0.34 (36.7th percentile), this represents normal volume ; hippocampal volume measures 6,003 mm³, 15.6% below the reference mean. With a Z-score of -1.43 (7.6th percentile), this represents mild atrophy; whole brain volume measures 867,003 mm³, 11.0% below the reference mean. With a Z-score of -1.39 (8.2th percentile), this represents mild atrophy; entorhinal cortex volume measures 2,824 mm³, 23.1% below the reference mean. With a Z-score of -1.42 (7.8th percentile), this represents mild atrophy; fusiform gyrus volume measures 11,442 mm³, 32.7% below the reference mean. With a Z-score of -2.98 (0.1th percentile), this represents significant atrophy; middle temporal gyrus volume measures 13,954 mm³, 27.2% below the reference mean. With a Z-score of -2.36 (0.9th percentile), this represents significant atrophy. ",
  "text_data": "Age is 75.8 years. Gender is Female. Education: 15 years. Handedness: Right. Race: White. Medical history: Head, Eyes, Ears, Nose and Throat; Respiratory; Dermatologic-Connective Tissue; Musculoskeletal; Endocrine-Metabolic; Gastrointestinal; Renal-Genitourinary; Malignancy; Major Surgical Procedures. MMSE: 29.0. MoCA: 27.0. Logical Memory: 10.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** The imaging data shows significant atrophy in the fusiform gyrus and middle temporal gyrus, along with mild atrophy in the hippocampus, whole brain, and entorhinal cortex, which are regions commonly affected in Alzheimer's disease. However, cognitive scores (MMSE 29, MoCA 27) are within normal limits, suggesting no significant functional impairment.  \n\n**Diagnosis:** **Mild Cognitive Impairment (MCI)** (due to structural changes without overt cognitive decline)  \n**Confidence:** **Medium** (high confidence in atrophy patterns, but cognitive scores complicate the diagnosis)",
  "timestamp": "2025-07-26T12:03:28.102624"
}