Patient radiation biological risk in computed tomography angiography procedure

Alkhorayef, M.; Babikir, E.; Alrushoud, Abdullah; Al-Mohammed, H.I.; Sulieman, Abdelmoneim

doi:10.1016/j.sjbs.2016.01.011

Cited by 48 publications

(24 citation statements)

References 23 publications

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“…This is consistent with previous results found in the literature [6,30]. The majority of respondents were aware that the radiation risk during abdominal and chest examinations is significantly higher than during head CT examinations, which is consistent with reported dose data form Saudi Arabic CT centres [38,39].…”

Section: Discussionsupporting

confidence: 91%

“…Many participants believed that the radiation dose for CT examinations of the head (68.3%), chest (67.3%), and abdomen (58.4%) in their department are considerably low. These score results indicate that most of the participants have a good estimation for the CT examination of the head and underestimated the radiation doses for the chest and abdomen CT examinations compared to the reported estimated values in the Saudi Arabia CT centres for head, the abdomen, and chest examinations, which were found to be in the range of 0.6 and 2.5 mSv, 6.7 and 11.2 mSv, and 4.3 and 11.6 mSv [ 38 , 39 ]; i.e., the majority of the participants were able to recognize the potential risk based on their knowledge of the delivered dose.…”

Section: Resultsmentioning

confidence: 99%

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Radiologists’ Knowledge and Attitudes towards CT Radiation Dose and Exposure in Saudi Arabia—A Survey Study

et al. 2020

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Computed tomography (CT) is a key imaging technique in diagnostic radiology, providing highly sensitive and specific information. While its use has increased dramatically in recent years, the quantity and associated risks of radiation from CT scans present major challenges, particularly in paediatrics. The fundamental principles of radiation protection require that radiation quantities be as low as reasonably achievable and CT use must be justified, particularly for paediatric patients. CT radiation knowledge is a key factor in optimising and minimising radiation risk. The objective of this study was to analyse knowledge level, expertise, and competency regarding CT radiation dose and its hazards in paediatrics among radiologists in Saudi Arabian hospitals. A self-reported, multiple-choice questionnaire assessed the attitudes and opinions of radiologists involved in imaging studies using ionising radiation. Among the total respondents, 65% ± 13.5% had a good comprehension of the dangers of carcinogenicity to the patient resulting from CT scans, with 80% presuming that cancer risks were elevated. However, only 48.5%, 56.5%, and 65% of the respondents were aware of specific radiation risks in head, chest, and abdominal paediatric examinations, respectively. Regular, frequent, and specific training courses are suggested to improve the fundamental knowledge of CT radiation among radiologists and other physicians.

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Section: Discussionsupporting

confidence: 91%

Section: Resultsmentioning

confidence: 99%

Radiologists’ Knowledge and Attitudes towards CT Radiation Dose and Exposure in Saudi Arabia—A Survey Study

et al. 2020

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“…In addition to concerns regarding contrast exposure, patients who present with recurrent bleeding are more likely to get multiple radiographic scans with increased radiation exposure. One study evaluated the cancer risk associated with each CTA and found that abdominal CTAs specifically confer the highest cancer risk, estimated to be around 36 cancer risks per 1 million procedures [72].…”

Section: Radiologic Evaluationmentioning

confidence: 99%

Diagnostic and therapeutic considerations for obscure gastrointestinal bleeding in patients with chronic kidney disease

Muftah¹

2019

aog

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Recurrent obscure gastrointestinal bleeding amongst patients with chronic kidney disease is a challenging problem gastroenterologists are facing and is associated with an extensive diagnostic workup, limited therapeutic options, and high healthcare costs. Small-bowel angiodysplasia is the most common etiology of obscure and recurrent gastrointestinal bleeding in the general population. Chronic kidney disease is associated with a higher risk of gastrointestinal bleeding and of developing angiodysplasia compared with the general population. As a result, recurrent bleeding in this subgroup of patients is more prevalent and is associated with an increased number of endoscopic and radiographic procedures with uncertain benefit. Alternative medical therapies can reduce re-bleeding; however, more studies are needed to confirm their efficacy in this subgroup of patients.

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“…DSA, however, can cause some complications, such as transient neurologic deficits [34]. CTA may expose patients to high radiation doses, and the probability of cancer and other biological effects is increased [35]. MRA does not emit damaging ionizing radiation, so that patients are not exposed to these harmful effects.…”

Section: Discussionmentioning

confidence: 99%

Risk factors outperform intracranial large artery stenosis predicting unfavorable outcomes in patients with stroke

et al. 2019

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Background This study examined how intracranial large artery stenosis (ILAS), symptomatic and asymptomatic ILAS, and risk factors affect unfavorable outcome events after medical treatment in routine clinical practice. Methods This was a 24-month prospective observational study of consecutively recruited stroke patients. All participants underwent magnetic resonance angiography, and their clinical characteristics were assessed. Outcome events were vascular outcome, recurrent stroke, and death. Cox regression analyses were performed to identify potential factors associated with an unfavorable outcome, which included demographic and clinical characteristics, the risk factors, and stenosis status. Results The analysis included 686 patients; among them, 371 were assessed as ILAS negative, 231 as symptomatic ILAS, and 84 as asymptomatic ILAS. Body mass index ( p < .05), hypertension ( p = .01), and old infarction ( p = .047) were factors relating to vascular outcomes. Hypertension was the only factor for recurrent stroke ( p = .035). Poor glomerular filtration rate (< 30 mL/min/1.73 m 2 ) ( p = .011) and baseline National Institutes of Health Stroke Scale scores ( p < .001) were significant predictors of death. Conclusions This study extended previous results from clinical trials to a community-based cohort study by concurrently looking at the presence/absence of stenosis and a symptomatic/asymptomatic stenotic artery. Substantiated risk factors rather than the stenosis status were predominant determinants of adverse outcome. Although the degree of stenosis is often an indicator for treatment, we suggest risk factors, such as hypertension and renal dysfunction, should be monitored and intensively treated.

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Patient radiation biological risk in computed tomography angiography procedure

Cited by 48 publications

References 23 publications

Radiologists’ Knowledge and Attitudes towards CT Radiation Dose and Exposure in Saudi Arabia—A Survey Study

Radiologists’ Knowledge and Attitudes towards CT Radiation Dose and Exposure in Saudi Arabia—A Survey Study

Diagnostic and therapeutic considerations for obscure gastrointestinal bleeding in patients with chronic kidney disease

Risk factors outperform intracranial large artery stenosis predicting unfavorable outcomes in patients with stroke

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