Comparison of Conventional and Hypofractionated IMRT in High-Risk Cervical Cancer Post-Radical Hysterectomy

Inclusion Criteria: * Patients diagnosed histologically with cervical cancer * Patients diagnosed histologically with Squamous cell carcinoma, Adenocarcinoma, or Adenosquamous carcinoma * Patients who have undergone radical hysterectomy and pelvic lymphadenectomy * Patients who meet the indication for radiotherapy in postoperative pathological examination (at least on of the following): A. Pelvic lymph node metastasis B. Parametrial involvement C. Positive surgical margins * Adult aged 20 to 75 years * Patients with an ECOG 0-1 within 1 week prior to study participation * Maintained bone marrow function: granulocyte ≥1.0 x 103/µl, platelets ≥30 x 103/µl, hemoglobin ≥9.5 g/dl * Maintained renal and liver function (Creatinine \<2.0 mg/dL, Bilirubin \< 1.5 mg/dl) * Patients who have voluntarily signed the consent form Exclusion Criteria: * Patients with distance metastasis (including ovarian and para-aortic lymph node metastasis) * Patients who have previously received radiotherapy to the pelvic area * Patients who have undergone radical hysterectomy more than 3 months prior * Patients with untreated serious acute illnesses (e.g., stroke, cerebral infarction, myocardial infarction) other than cervical cancer * Patients who received neoadjuvant chemotherapy before surgery * Patients who will not receive concurrent chemotherapy during radiotherapy * Patients with a history of another cancer diagnosis within the past 5 years, except for thyroid cancer, skin cancer, or carcinoma in suit