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Background The added value of preoperative PET/CT for the overall survival of patients with resectable non-small cell lung cancer (NSCLC) is unknown. Purpose To investigate the association of the use of preoperative PET/CT on survival of patients with resectable stage I-IIIB NSCLC. Materials and Methods In this retrospective study, patients with resectable stage I-IIIB NSCLC who underwent thoracic surgery from January 1, 2009, to December 31, 2018, from the Taiwan Cancer Registry were included. The last follow-up date was December 31, 2019. Patients were categorized into two groups according to whether they underwent preoperative metabolic imaging with fluorine 18 fluorodeoxyglucose PET/CT. Patients who did not undergo preoperative imaging were used as the control group. The primary outcome of interest was all-cause mortality. Patients in both groups were propensity score matched at a ratio of 1:1. Matching variables used were sex, age, histologic findings, American Joint Committee on Cancer clinical stage, cT stage, cN stage, current and past smoker history, adjuvant chemotherapy, adjuvant chemoradiation, Charlson comorbidity index, and hospital type. Survival curves were generated using the Kaplan-Meier method and compared using the log-rank test. Results In the matched cohort, 6754 patients (3349 men, mean age ± SD: 64 years ± 11) underwent PET/CT and 6754 did not (3362 men, mean age: 64 years ± 11). In adjusted analysis, patients with stage IIIA or IIIB NSCLC and preoperative PET/CT had a lower risk of death versus those without PET/CT (for stage IIIA: hazard ratio [HR] = 0.90 [95% CI: 0.79, 0.94], = .02; for stage IIIB: HR = 0.80 [95% CI: 0.71, 0.90], < .01). There was no improvement in a lower risk of death for patients with stage I-II NSCLC (after multivariable adjustment, the HR was 1.19 [95% CI: 0.89, 1.30], = .65). Conclusion Use of preoperative PET/CT was associated with lower risk of death in patients with stage IIIA-IIIB non-small cell lung cancer compared with those without preoperative PET/CT. © RSNA, 2022 .
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http://dx.doi.org/10.1148/radiol.212798 | DOI Listing |
Biomark Med
December 2024
Nuclear Medicine, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian, China.
Background: Lymph node metastasis is closely associated with the prognosis of patients with non-small cell lung cancer (NSCLC). This study aimed to evaluate the role of preoperative 18F-fluorodeoxyglucose (FDG) positron emission tomography/computed tomography (PET/CT) parameters in mediastinal lymph node metastasis in NSCLC.
Methods: One hundred patients with NSCLC who underwent surgery, systematic lymph node dissection, who had undergone 18FFDG PET/CT for initial staging were divided into two groups: lymph node metastasis and non-metastasis.
World J Methodol
December 2024
Department of Radiology, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, United States.
One of the leading causes of cancer-related death is gastrointestinal cancer, which has a significant morbidity and mortality rate. Although preoperative risk assessment is essential for directing patient care, its biological behavior cannot be accurately predicted by conventional imaging investigations. Potential pathophysiological information in anatomical imaging that cannot be visually identified can now be converted into high-dimensional quantitative image features thanks to the developing discipline of molecular imaging.
View Article and Find Full Text PDFJ Cardiothorac Surg
December 2024
Department of General Thoracic Surgery, Osaka International Cancer Institute, 1,3,4: 3-1-69, Otemae, Chuo-Ku, Osaka, 541-8567, Japan.
Background: The prognosis of patients with synchronous oligometastatic non-small cell lung cancer (NSCLC) has been improving owing to advancements in imaging techniques and new treatment approaches such as tyrosine kinase inhibitors. This study aimed to investigate the long-term outcomes, including the clinical course after recurrence, of patients with synchronous oligometastatic NSCLC with only brain metastases, treated with bifocal treatment.
Methods: We retrospectively analyzed 22 patients with clinical T1-4 and N0-1 NSCLC with synchronous brain metastases who were diagnosed by preoperative PET/CT and brain CT or MRI and underwent pulmonary resection for the primary site and surgery or radiation therapy for brain metastases at our institution from 2005 to 2019.
Gen Thorac Cardiovasc Surg Cases
December 2024
Department of Cardiovascular Surgery, Teikyo University Hospital, 2-21-1 Kaga, Itabashi-Ku, Tokyo, 173-8606, Japan.
Background: Cardiac myxoma rarely occurs in the right ventricle, and as is a benign disease, it rarely shows high positivity on 18F fluorodeoxyglucose (FDG) positron emission tomography/computed tomography (PET/CT).
Case Presentation: We present herein the case of a 77-year-old woman who was found to have a heart murmur during a routine health checkup. Further examination revealed a 27-mm tumor in the right ventricular outflow tract (RVOT) and moderate aortic valve stenosis.
Int J Radiat Oncol Biol Phys
December 2024
Department of Radiation Oncology, The Ohio State University Wexner Medical Center, Columbus, Ohio. Electronic address:
Background: Meningiomas are the most common primary intracranial tumor. Somatostatin receptor 2 (SSTR 2) is almost universally expressed in meningioma tissue. For patients who require adjuvant radiation, SSTR based (68)Ga-DOTATATE positron emission tomography (PET) imaging can detect additional or residual disease not discernible on magnetic resonance imaging (MRI).
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