How does a non-optimal tube potential influence radiation dose to the patient in lumbar spine radiography?

Radiography ◽  
2021 ◽  
Author(s):  
E. Alukic ◽  
N. Mekis
Keyword(s):  
Lumbar Spine ◽  
Radiation Dose ◽  
Potential Influence ◽  
Spine Radiography ◽  
Tube Potential

scholarly journals Determination of Radiation Dose from Routine X-ray Examination at Three Selected Hospitals in AlNajaf, Iraq

2019 ◽  
pp. 2163-2167
Author(s):  
Hussien Abid Ali Bakir ◽  
Talib Abdulridha Al-hchaimi ◽  
Aymen S. Amran ◽  
Aqeel H. Al Zurfi
Keyword(s):  
Lumbar Spine ◽  
Radiation Dose ◽  
Biological Effects ◽  
Skin Dose ◽  
Hospital Data ◽  
X Ray ◽  
Exposure Factor ◽  
Tube Potential ◽  
Tube Current

People who undertaken different X-ray examinations are already exposed to ionizing radiation which causes biological effects. Therefore assessing the patient radiation dose is a prerequisite element in optimizing the X-ray practice and to avoid the unnecessary radiation dose. The aim of this research is to assess the skin radiation dose for those patients who undertaking routine X-ray examinations in selected three hospitals in Al Najaf city.      Three X-ray units were involved in this experimental study; these were belonging to three hospitals in Al Najaf city-Iraq, namely Al-Sadder teaching hospital, Al-Hakeem general hospital and Al-Zahraa hospital. Data of exposure parameters (tube potential (kVp), tube current (mAs) and source to detector distance (d cm)). The data were collected from 160 patients exposed to radiation during different X-ray examinations. Patients were chosen to be within adult range (>18 years) and the selection was random (male and female). Patient skin dose was calculated mathematically using an established formula depending on the recorded exposure factor (kVp, mAs and d). Different X-ray examinations were considered, namely skull Posterior –anterior (PA), skull Lateral (LAT), chest PA, chest LAT, abdomen Anterior-posterior (AP), pelvis AP, lumbar spine  AP and lumbar LAT. The average skin dose for all X-ray examinations considered in this research were as follow: 0.9, 0.76, 0.23, 0.41, 1.85, 1.82, 2.03 and 3.44 mGy, for skull PA, skull LAT, chest PA, chest LAT, abdomen AP, pelvis AP, lumbar spine(LS) AP and Lumbar spine (LS)LAT respectively. The results demonstrate that the dose values were comparable to those that were previously reported in published reference.

scholarly journals Radiation dose estimation of patients undergoing lumbar spine radiography

2013 ◽  
Vol 38 (4) ◽  
pp. 185 ◽  
Author(s):  
PrinceKwabena Gyekye ◽  
Emi-Reynolds Geoffrey ◽  
CynthiaKaikor Engmann ◽  
Adu Simon ◽  
Yeboah Johnson ◽  
...  
Keyword(s):  
Lumbar Spine ◽  
Radiation Dose ◽  
Dose Estimation ◽  
Spine Radiography

scholarly journals Surgivisio® and O-arm®O2 cone beam CT mobile systems for guidance of lumbar spine surgery: Comparison of patient radiation dose

2021 ◽  
Vol 85 ◽  
pp. 192-199
Author(s):  
Julia Rousseau ◽  
Serge Dreuil ◽  
Céline Bassinet ◽  
Sophie Cao ◽  
Hélène Elleaume
Keyword(s):  
Lumbar Spine ◽  
Radiation Dose ◽  
Spine Surgery ◽  
Cone Beam Ct ◽  
Mobile Systems ◽  
Cone Beam ◽  
Lumbar Spine Surgery ◽  
Patient Radiation Dose

Using 100- instead of 120-kVp computed tomography to diagnose pulmonary embolism almost halves the radiation dose with preserved diagnostic quality

2010 ◽  
Vol 51 (3) ◽  
pp. 260-270 ◽  
Author(s):  
Peter Björkdahl ◽  
Ulf Nyman
Keyword(s):  
Computed Tomography ◽  
Pulmonary Embolism ◽  
Image Quality ◽  
Radiation Dose ◽  
Effective Dose ◽  
Ct Number ◽  
Subjective Image Quality ◽  
Diagnostic Quality ◽  
X Ray ◽  
Tube Potential

Background: Concern has been raised regarding the mounting collective radiation doses from computed tomography (CT), increasing the risk of radiation-induced cancers in exposed populations. Purpose: To compare radiation dose and image quality in a chest phantom and in patients for the diagnosis of pulmonary embolism (PE) at 100 and 120 peak kilovoltage (kVp) using 16-multichannel detector computed tomography (MDCT). Material and Methods: A 20-ml syringe containing 12 mg I/ml was scanned in a chest phantom at 100/120 kVp and 25 milliampere seconds (mAs). Consecutive patients underwent 100 kVp ( n = 50) and 120 kVp ( n = 50) 16-MDCT using a “quality reference” effective mAs of 100, 300 mg I/kg, and a 12-s injection duration. Attenuation (CT number), image noise (1 standard deviation), and contrast-to-noise ratio (CNR; fresh clot = 70 HU) of the contrast medium syringe and pulmonary arteries were evaluated on 3-mm-thick slices. Subjective image quality was assessed. Computed tomography dose index (CTDIvol) and dose–length product (DLP) were presented by the CT software, and effective dose was estimated. Results: Mean values in the chest phantom and patients changed as follows when X-ray tube potential decreased from 120 to 100 kVp: attenuation +23% and +40%, noise +38% and +48%, CNR −6% and 0%, and CTDIvol −38% and −40%, respectively. Mean DLP and effective dose in the patients decreased by 42% and 45%, respectively. Subjective image quality was excellent or adequate in 49/48 patients at 100/120 kVp. No patient with a negative CT had any thromboembolism diagnosed during 3-month follow-up. Conclusion: By reducing X-ray tube potential from 120 to 100 kVp, while keeping all other scanning parameters unchanged, the radiation dose to the patient may be almost halved without deterioration of diagnostic quality, which may be of particular benefit in young individuals.

Image quality in conventional lumbar spine radiography

2009 ◽  
Vol 70 (2) ◽  
pp. 357-361 ◽  
Author(s):  
Tilo Niemann ◽  
Clemens Reisinger ◽  
Laura Ruiz-Lopez ◽  
Georg Bongartz
Keyword(s):  
Lumbar Spine ◽  
Image Quality ◽  
Spine Radiography

scholarly journals Justification and active guideline implementation for spine radiography referrals in primary care

2016 ◽  
Vol 58 (5) ◽  
pp. 586-592 ◽  
Author(s):  
Pirita Tahvonen ◽  
Heljä Oikarinen ◽  
Jaakko Niinimäki ◽  
Esa Liukkonen ◽  
Seija Mattila ◽  
...  
Keyword(s):  
Primary Care ◽  
Lumbar Spine ◽  
Guideline Implementation ◽  
Public Health Problem ◽  
Further Education ◽  
Major Public Health Problem ◽  
Spine Radiography ◽  
Cervical Spine Radiography ◽  
Active Implementation

Background Spinal disorders are a major public health problem. Appropriate diagnostic imaging is an essential part in the management of back complaints. Nevertheless, inappropriate imaging increases population collective dose and health costs without improving outcome. Purpose To determine the effects of active implementation of referral guidelines on the number and justification of spine radiography in primary care in one city. Material and Methods Specified guidelines for spine radiography were distributed to referring practitioners altogether three times during the study period. Educational lectures were provided before the guidelines were taken into use. The guidelines were also made available via the intranet. The number of spine radiography referrals during similar 6-month periods in the year preceding the interventions and the following 2 years was analyzed. Justification of 448 spine radiographs was assessed similarly. Results After interventions, the total number of spine radiography examinations decreased by 48% (P < 0.001) and that of cervical spine radiography by 46% ( P < 0.001), thoracic spine by 53% ( P < 0.001), and lumbar spine by 47% ( P < 0.001). The results persisted after 1-year follow-up. Before interventions, 24% of the cervical, 46% of the thoracic, and 32% of the lumbar spine radiography referrals were justified. After interventions, only justification of lumbar spine radiography improved significantly, 64% being justified ( P = 0.005). Conclusion Spine radiography in primary care can be reduced significantly by active referral guideline implementation. The proportion of inappropriate radiography was unexpectedly high. Thus, further education and studies concerning the appropriate use of spinal radiography seems to be needed.

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