Article
Radiology, Nuclear Medicine & Medical Imaging
Younghyun Lee, Won Jin Lee, Young Woo Jin, Seongjae Jang
Summary: The study found that interventional radiologists had greater chromosomal damages compared to other occupational groups. Approximately 4.67% of their body was irradiated at an average dose of 4.64 Gy, and their partial-body exposure levels might be high enough to cause local damage.
EUROPEAN RADIOLOGY
(2021)
Article
Radiology, Nuclear Medicine & Medical Imaging
Charlotte S. Weyland, Jessica Jesser, Isabella Bourgart, Tim Hilgenfeld, Michael O. Breckwoldt, Dominik Vollherbst, Niclas Schmitt, Fatih Seker, Martin Bendszus, Markus A. Moehlenbruch
Summary: This study aimed to assess the radiation exposure of neurointerventionalists during endovascular stroke treatment (EST) and compare the exposure on the left arm with the left temple. The results showed that neurointerventionalists experienced radiation exposure during EST, but there was no significant difference in exposure between the left arm and left temple.
EUROPEAN JOURNAL OF RADIOLOGY
(2023)
Article
Chemistry, Physical
Abdelmoneim Sulieman, Nissren Tamam, Mayeen Uddin Khandaker, D. A. Bradley, R. Padovani
Summary: Endoscopic retrograde cholangio-pancreatography (ERCP) is a complex gastrointestinal procedure that requires minimizing radiation risks and finding a balance between optimal benefits and radiation risks. Staff and patient doses vary depending on operators, equipment, and patient factors, with a focus on radiation protection techniques and modern fluoroscopic equipment to manage exposure. In high workload departments, staff doses to eye lens may exceed annual exposure limits.
RADIATION PHYSICS AND CHEMISTRY
(2021)
Article
Medicine, General & Internal
Wojciech Derwich, Alexandru Barb, Thomas Vogl, Kyriakos Oikonomou, Daphne Gray
Summary: This study found that BMI has a greater impact on predicting intraoperative radiation exposure, while the duration of surgery is significantly correlated with BMI and vascular tortuosity.
JOURNAL OF CLINICAL MEDICINE
(2023)
Article
Radiology, Nuclear Medicine & Medical Imaging
Eleftherios Tzanis, Kostas Perisinakis, Christos V. Ioannou, Dimitrios Tsetis, John Damilakis
Summary: This study estimated radiation doses for primarily irradiated organs/tissues of patients undergoing standard EVAR procedures using a personalized dosimetry method. Results showed higher radiation doses for the skin, spinal bone marrow, kidneys, and spleen. The personalized dosimetry method resulted in dose values different from those estimated using standardized phantoms.
EUROPEAN RADIOLOGY
(2021)
Article
Surgery
Jasmine Bhinder, Monica O'Brien-Irr, Brendon Reilly, Brittany Montross, Sikandar Khan, Mariel Rivero, Gregory Cherr, Linda Harris
Summary: Despite having robust radiation safety education procedures and policies, our vascular surgery residency and fellowship program trainees exceeded the annual radiation exposure limits. We conducted a quality improvement project to identify the root causes and implemented interventions to improve radiation safety education, oversite, and trainee exposure levels. The interventions, including policy changes, curriculum improvements, and equipment updates, were successful in reducing radiation exposure, particularly at a specific hospital site.
JOURNAL OF VASCULAR SURGERY
(2023)
Article
Orthopedics
Joshua R. Daryoush, Alex J. Lancaster, Jeffrey J. Frandsen, Jeremy M. Gililland
Summary: The article reviews the literature to discuss radiation safety in orthopedics, focusing on total joint arthroplasty. It presents the basic science of radiation, discusses the amount of radiation exposure in orthopedic surgery, and reviews the potential health risks associated with long-term exposure.
JOURNAL OF ARTHROPLASTY
(2022)
Article
Surgery
Jasmine Bhinder, Elias Fakhoury, Monica O'Brien-Irr, Brendon Reilly, Maciej Dryjski, Hasan Dosluoglu, Gregory Cherr, Linda Harris
Summary: This study evaluated radiation safety practices, training, and exposure among senior vascular residents and fellows in Accreditation Council for Graduate Medical Education-accredited programs in the United States. The results showed a high percentage of trainees exceeding radiation exposure limits, indicating the need for programs to reduce exposure through training and feedback.
JOURNAL OF VASCULAR SURGERY
(2022)
Article
Environmental Sciences
Timothy L. Keenen, Shaban Demirel, Angelica Gheen, Benjamin Casabarro, Daniel Fleishman
Summary: The use of intraoperative fluoroscopy in surgery can lead to measurable and sometimes substantial radiation doses for operating room personnel due to scattered radiation. This study aimed to evaluate and record potential radiation doses for different staff positions in a simulated standard operating room environment. Lead protective apron-wearing mannequins were placed at various positions around cadavers with different body mass index (BMI). Dosimeters with Bluetooth capability were used to record real-time doses at the thyroid level under different fluoroscope settings and imaging views. A strong correlation was found between the recorded scattered radiation doses and cumulative air kerma (CAK) calculations provided by the fluoroscope. Manipulating C-arm manual technique settings, such as turning off the automatic exposure control (AEC) and using pulse (PULSE) or low dose (LD) settings, could significantly reduce radiation doses to staff members.
Article
Otorhinolaryngology
Yoshiaki Morishima, Koichi Chida, Osamu Ito
Summary: The videofluoroscopic swallowing study (VFSS) is a standard diagnostic imaging technique used for investigating swallowing disorders. The study found that the use of an original lead shielding device (OLSD) effectively reduced the radiation exposure of physicians during the procedure, resulting in a 51.6% dose reduction.
Article
Urology & Nephrology
Todd S. Yecies, Brian Chun, Michelle J. Semins, Rajeev Chaudhry
Summary: The purpose of this study was to investigate the relationship between fluoroscopy pulse rate and absorbed radiation dose. The results showed that there was a linear correlation between fluoroscopy pulse rate and absorbed radiation dose. Using a low-dose setting significantly reduced the absorbed radiation dose compared to the standard dose. The combination of a pulse rate of 1 pulse per second and low-dose fluoroscopy reduced the absorbed dose by 97.7%.
WORLD JOURNAL OF UROLOGY
(2023)
Article
Clinical Neurology
Jan-Helge Klingler, Christoph Scholz, Marie T. Krueger, Yashar Naseri, Florian Volz, Marc Hohenhaus, Johannes Broenner, Herbert Hoedlmoser, Ronen Sircar, Ulrich Hubbe
Summary: The study compared the radiation exposure of surgeons and patients using FLUORO and NAV intraoperative imaging techniques. The results showed that the average radiation exposure of surgeons was lower in the NAV group without statistical significance and the radiation exposure of the patient was significantly higher in the NAV group.
Article
Medicine, General & Internal
Mamoru Takenaka, Madan M. Rehani, Makoto Hosono, Tomohiro Yamazaki, Shunsuke Omoto, Kosuke Minaga, Ken Kamata, Kentaro Yamao, Shiro Hayashi, Tsutomu Nishida, Masatoshi Kudo
Summary: This study compared radiation exposure between EUS-HGS and EUS-HGAS, and found that EUS-HGAS has significantly higher radiation exposure than EUS-HGS. There were no differences between the two procedures in terms of technical success rate, complications rate, adverse event occurrence rate, and re-intervention rate.
JOURNAL OF CLINICAL MEDICINE
(2022)
Review
Biochemistry & Molecular Biology
Ines Lledo, Blanca Ibanez, Ana Melero, Alegria Montoro, Juan F. Merino-Torres, Nadia San Onofre, Jose M. Soriano
Summary: This review examines the radioprotective effect of vitamins through ex vivo, in vitro, and in vivo studies. A total of 38 articles were included, which investigated the radioprotective effect of vitamins A, C, D, and E either alone or in combination with other compounds. The use of vitamins, either in their natural form or as supplements, can help reduce the negative effects of radiation on the body, organs, and cells. Among the thirteen vitamins, only vitamin E, followed by vitamin C, A, and D, showed radioprotective properties.
Article
Multidisciplinary Sciences
David Michael Lowry, Lin Fritschi, Benjamin J. Mullins
Summary: This study aimed to evaluate the effectiveness of using a combination of area noise measurements and task activity diaries to estimate full-shift dosimeter measurements in utility workers. The results showed a strong correlation between task-based area measurements and full-shift TWA measurements.
Article
Gastroenterology & Hepatology
Dimitrios N. Samonakis, Maria Psyllaki, Konstantia Pavlaki, Elias Drakos, Elias Kehagias, Maria Tzardi, Helen A. Papadaki
Summary: The association between Non-Hodgkin lymphomas and Hepatitis C virus is well-documented, and while antiviral treatments can facilitate virological and hematological responses, concerns have been raised about the frequency and pattern of recurrence in HCV patients with HCC treated with these agents.
ANNALS OF HEPATOLOGY
(2021)
Article
Surgery
Nikolaos Kontopodis, Elias Kehagias, Emmanouel Tavlas, Nikolaos Galanakis, Dimitrios Tsetis, Christos Ioannou
Summary: The use of Perclose Proglide system for percutaneous access in patients with synthetic grafts in the groin undergoing EVAR and peripheral interventions has shown to be feasible with promising outcomes in achieving hemostasis and minimal complications.
ANNALS OF VASCULAR SURGERY
(2021)
Article
Radiology, Nuclear Medicine & Medical Imaging
Stavros Charalambous, Kostas Perisinakis, Nikolaos Kontopodis, Antonios E. Papadakis, Nikolaos Galanakis, Elias Kehagias, Nikolas Matthaiou, Thomas G. Maris, Christos Ioannou, Dimitrios Tsetis
Summary: The aim of this study was to investigate the potential of various computed tomography perfusion parameters for their ability to distinguish high-risk type-2 endoleaks from low-risk type-2 endoleaks after an endovascular aneurysm repair.
JOURNAL OF VASCULAR AND INTERVENTIONAL RADIOLOGY
(2021)
Editorial Material
Surgery
Nikolaos Kontopodis, Nikolaos Galanakis, Stavros Charalambous, Elias Kehagias, Dimitrios Tsetis, Christos V. Ioannou
VASCULAR SPECIALIST INTERNATIONAL
(2021)
Editorial Material
Surgery
Nikolaos Galanakis, Nikolaos Kontopodis, Elias Kehagias, Nikolaos Daskalakis, Christos V. Ioannou, Dimitrios Tsetis
VASCULAR SPECIALIST INTERNATIONAL
(2021)
Article
Surgery
Nikolaos Galanakis, Nikolaos Kontopodis, Elias Kehagias, Nikolaos Daskalakis, Konstantinos Tsetis, Christos Ioannou, Dimitrios Tsetis
Summary: Phlegmasia cerulea dolens (PCD) is a rare complication of acute deep vein thrombosis that can threaten limb viability. In this case, direct iliac vein stenting was used to achieve immediate recanalization and significant clinical improvement in a patient with May-Thurner syndrome (MTS) causing iliofemoral deep vein thrombosis.
VASCULAR SPECIALIST INTERNATIONAL
(2021)
Review
Radiology, Nuclear Medicine & Medical Imaging
Nikolaos Galanakis, Thomas G. Maris, Nikolaos Kontopodis, Konstantinos Tsetis, Elias Kehagias, Dimitrios Tsetis
Summary: This review provides a basic overview of perfusion techniques for lower limb PAD evaluation and revascularization outcome using imaging modalities such as ultrasound, CT, MRI, digital subtraction angiography and scintigraphy.
BRITISH JOURNAL OF RADIOLOGY
(2022)
Article
Surgery
Nikolaos Kontopodis, Stavros Charalambous, Nikolaos Galanakis, Stella Lioudaki, Ifigeneia Tzartzalou, Elias Kehagias, Dimitrios Tsetis, Christos V. Ioannou
Summary: This study aimed to examine the outcomes of EVAR with the Ovation endograft in patients with wide aortic necks. The results showed that EVAR with the Ovation endograft resulted in low rates of neck-related complications in patients with wide aortic necks.
ANNALS OF VASCULAR SURGERY
(2023)
Article
Radiology, Nuclear Medicine & Medical Imaging
Nikolas Matthaiou, Nikolaos Galanakis, Antonios E. Papadakis, Elias Kehagias, Nikolaos Kontopodis, Stavros Charalambous, Konstantinos Perisinakis, Thomas G. Maris, Christos Ioannou, Dimitrios Tsetis
Summary: This study investigated the role of dual-energy CT in lesion characterization in patients with peripheral arterial disease manifesting with chronic total occlusions (CTOs). The results showed that dual-energy CT can provide information regarding the composition of a CTO.
JOURNAL OF VASCULAR AND INTERVENTIONAL RADIOLOGY
(2022)
Article
Health Care Sciences & Services
Georgios Papastratigakis, Diamantina Marouli, Athanasia Proklou, Nikolaos Nasis, Eumorfia Kondili, Elias Kehagias
Summary: Percutaneous central venous catheterization is a commonly used technique, but it is not without complications, even with real-time ultrasound guidance. Arterial puncture is a well-known complication, and unintended subclavian or carotid artery cannulations during central venous catheterization attempts are rare but documented complications that can have serious consequences. Recently, endovascular balloon tamponade has become the preferred initial approach for repairing inadvertent arterial cannulations.
JOURNAL OF PERSONALIZED MEDICINE
(2022)
Article
Oncology
Michalis Mazonakis, Eleftherios Tzanis, Efrossyni Lyraraki, John Damilakis
Summary: A new software tool was developed for quick and automatic calculation of tumor control probability (TCP) and normal tissue control probability (NTCP) in radiation therapy plans. This study compared different techniques for gastric cancer irradiation and found that intensity-modulated radiation therapy (IMRT) and volumetric modulated arc therapy (VMAT) provided higher TCPs and reduced the risk of late adverse effects in surrounding organs compared to three-dimensional conformal radiotherapy (3D-CRT).
Review
Peripheral Vascular Disease
Nikolaos Kontopodis, Konstantinos Tzirakis, Elias Kehagias, Athina Kouraki, Christos V. Ioannou
Summary: Abdominal aortic aneurysms (AAAs) are a potentially lethal health condition commonly found in the aging population of developed countries. Current management is based on the maximum diameter criterion, but this often leads to diagnostic inaccuracies. Individualized patient-specific rupture risk estimation is desirable, and computational modelling can provide insight into AAAs' progression and rupture.
ITALIAN JOURNAL OF VASCULAR AND ENDOVASCULAR SURGERY
(2023)
Editorial Material
Surgery
Nikolaos Galanakis, Nikolaos Kontopodis, Nikolas Matthaiou, Dimitrios Tsetis, Elias Kehagias
VASCULAR SPECIALIST INTERNATIONAL
(2023)
Article
Surgery
Konstantinos Tzirakis, Nikolaos Kontopodis, Elias Kehagias, Christos Ioannou
Summary: This study aims to evaluate the effects of aortic neck angulation, angle between the iliac arteries, and sac asymmetry on the hemodynamic variables of abdominal aortic aneurysms (AAAs). The results show that increasing neck and iliac angles result in more favorable hemodynamic conditions, while asymmetrical configurations are more advantageous. Therefore, these parameters should be taken into account when assessing the geometric characteristics of AAAs.
ANNALS OF VASCULAR SURGERY
(2023)
Article
Radiology, Nuclear Medicine & Medical Imaging
Eleftherios Tzanis, John Damilakis
Summary: The purpose of this study is to develop a neural network-enhanced workflow for the establishment/update of local diagnostic reference levels (DRLs) in interventional radiology using endovascular aneurysm repair (EVAR) procedures as a case study. The proposed algorithm can automatically extract dose parameters from dose reports and calculate relevant indicators. The accuracy and time efficiency of the algorithm were evaluated, showing promising results for the establishment of DRLs.
PHYSICA MEDICA-EUROPEAN JOURNAL OF MEDICAL PHYSICS
(2023)