Matches in SemOpenAlex for { <https://semopenalex.org/work/W4377016731> ?p ?o ?g. }
Showing items 1 to 68 of
68
with 100 items per page.
- W4377016731 endingPage "744" @default.
- W4377016731 startingPage "738" @default.
- W4377016731 abstract "To investigate optimising a computerised tomography pulmonary angiogram (CTPA) scan protocol in terms of radiation dose and image quality using a low kV technique combined with high iterative reconstruction (IR) parameters (>50%) and apply the optimised protocol in clinical practice on patients irrespective of their body weight.CTPA examinations were performed on 64 patients equally divided into control and experimental groups. Patients in the control group were scanned using the current protocol (100 kV with 50% IR) while patients in the experimental group were scanned using an optimised protocol (80 kV with 60%IR). The radiation dose indices volume computerised tomography dose index (CTDIvol), dose length product (DLP), size specific dose estimates (SSDE) and effective dose (ED) were recorded. Subjective image quality was evaluated by 3 radiologists through absolute visual grading analysis (VGA) using an image quality scoring tool. The resultant image quality scores were analysed using Visual Grading Characteristics (VGC). Objective image quality was recorded in terms of contrast-to-noise-ratio (CNR) and signal-to-noise-ratio (SNR).The application of the optimised protocol resulted in a statistically significant (p < 0.05) reduction in mean CTDIvol (-49%), DLP (-48%), SSDE (-52%) and ED (-49%). Objective image quality was significantly (p < 0.05) improved both in CNR (32%) and SNR (13%). Subjective image quality scores were higher for the current protocol but variation between the two protocols was not significant (p = 0.650).When applying the low kV technique combined with high IR parameters, a significant dose reduction may be achieved while still maintaining diagnostic image quality.The low kV technique combined with high IR parameters is an effective optimisation technique which can be easily implemented for the CTPA protocol." @default.
- W4377016731 created "2023-05-19" @default.
- W4377016731 creator A5027201356 @default.
- W4377016731 creator A5048974337 @default.
- W4377016731 creator A5066825054 @default.
- W4377016731 date "2023-07-01" @default.
- W4377016731 modified "2023-09-29" @default.
- W4377016731 title "Low dose CTPA using a low kV technique combined with high IR: A clinical study" @default.
- W4377016731 cites W2073873460 @default.
- W4377016731 cites W2081234634 @default.
- W4377016731 cites W2147597387 @default.
- W4377016731 cites W2157425811 @default.
- W4377016731 cites W2164302071 @default.
- W4377016731 cites W2183659962 @default.
- W4377016731 cites W2476758596 @default.
- W4377016731 cites W2610921266 @default.
- W4377016731 cites W2804142653 @default.
- W4377016731 cites W2807264744 @default.
- W4377016731 cites W2811311376 @default.
- W4377016731 cites W2899919303 @default.
- W4377016731 cites W2906029839 @default.
- W4377016731 cites W4205196774 @default.
- W4377016731 cites W4296928298 @default.
- W4377016731 cites W4317655723 @default.
- W4377016731 doi "https://doi.org/10.1016/j.radi.2023.05.001" @default.
- W4377016731 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/37209581" @default.
- W4377016731 hasPublicationYear "2023" @default.
- W4377016731 type Work @default.
- W4377016731 citedByCount "0" @default.
- W4377016731 crossrefType "journal-article" @default.
- W4377016731 hasAuthorship W4377016731A5027201356 @default.
- W4377016731 hasAuthorship W4377016731A5048974337 @default.
- W4377016731 hasAuthorship W4377016731A5066825054 @default.
- W4377016731 hasConcept C115961682 @default.
- W4377016731 hasConcept C154945302 @default.
- W4377016731 hasConcept C2987700449 @default.
- W4377016731 hasConcept C2989005 @default.
- W4377016731 hasConcept C41008148 @default.
- W4377016731 hasConcept C55020928 @default.
- W4377016731 hasConcept C71924100 @default.
- W4377016731 hasConceptScore W4377016731C115961682 @default.
- W4377016731 hasConceptScore W4377016731C154945302 @default.
- W4377016731 hasConceptScore W4377016731C2987700449 @default.
- W4377016731 hasConceptScore W4377016731C2989005 @default.
- W4377016731 hasConceptScore W4377016731C41008148 @default.
- W4377016731 hasConceptScore W4377016731C55020928 @default.
- W4377016731 hasConceptScore W4377016731C71924100 @default.
- W4377016731 hasIssue "4" @default.
- W4377016731 hasLocation W43770167311 @default.
- W4377016731 hasLocation W43770167312 @default.
- W4377016731 hasOpenAccess W4377016731 @default.
- W4377016731 hasPrimaryLocation W43770167311 @default.
- W4377016731 hasRelatedWork W2158679180 @default.
- W4377016731 hasRelatedWork W2359076714 @default.
- W4377016731 hasRelatedWork W2374245272 @default.
- W4377016731 hasRelatedWork W2905261372 @default.
- W4377016731 hasRelatedWork W3031052184 @default.
- W4377016731 hasRelatedWork W3108514573 @default.
- W4377016731 hasRelatedWork W3149425334 @default.
- W4377016731 hasRelatedWork W3157555536 @default.
- W4377016731 hasRelatedWork W3164593748 @default.
- W4377016731 hasRelatedWork W4200432388 @default.
- W4377016731 hasVolume "29" @default.
- W4377016731 isParatext "false" @default.
- W4377016731 isRetracted "false" @default.
- W4377016731 workType "article" @default.