Preparative Fasting for Contrast-enhanced CT: Reconsideration

Lee, Bae-Young; Ok, Jin-Ju; El-Sayed, Abdel-Rahman; Kim, Young‐Jin; Han, Dae Hee

doi:10.1148/radiol.12111605

Cited by 35 publications

(39 citation statements)

References 28 publications

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“…32 Similar results have been obtained for patients undergoing upper gastrointestinal endoscopy. 5,33 Findings from other studies suggest that fasting may not be necessary for computed tomography with intravenous contrast, 34 abdominal ultrasonography, 8 coronary intervention, 9 or conscious sedation. 35 Interestingly, a small study found that patients may be able to eat lunch even before an afternoon colonoscopy without compromising the quality of the study, as long as the bowels have been adequately prepared.…”

Section: Discussionmentioning

confidence: 99%

Frequency and Appropriateness of Fasting Orders in the Hospital

Sorita

Thongprayoon

Ahmed

et al. 2015

Mayo Clinic Proceedings

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Section: Discussionmentioning

confidence: 99%

Frequency and Appropriateness of Fasting Orders in the Hospital

Sorita

Thongprayoon

Ahmed

et al. 2015

Mayo Clinic Proceedings

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“…Prior to scan emptiness of stomach and bowels were ensured. 21 Contrast material was given through a wide bore intravenous line placed in the antecubital fossa at the rate of 4 ml/sec and amount of 2 ml/kg contrast was injected. The patient was instructed to hold his/her breath for 10 seconds and scan was initiated.…”

Section: Methodsmentioning

confidence: 99%

Analysis of renal artery morphometery in adults: A study conducted by using Multidetector computed Tomography Angiography

et al. 2017

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Objective:To determine a reference range of renal artery measurements by using Multidetector Computed Tomography (MDCT) angiography and to find association of renal artery measurements with side of artery, gender and age.Method:Two hundred and fifty study participants without renal artery disease who werepresented to Radiology Department, Ziauddin Hospital, Karachi, from November, 2016 to April, 2017 were included in this study. Main renal artery measurements were taken on Multidetector computed angiography and variation with side, gender and age were analyzed. Statistical analysis was done on Statistical Package for Social Sciences (SPSS) version 20. Independent sample T test, one way ANOVA and Pearson’s correlation analysis were applied. P-value of < 0.05 was considered significant.Results:A significance difference (p=0.001) was seen between mean right renal artery (diameter 6.66 ± 0.39 mm; length 44.69 ± 2.48 mm) and left renal artery (diameter 6.79 ± 0.36; length 35.10 ± 2.86 mm). Females found to have smaller mean diameter and length of renal arteries than males. However, a weak negative correlation was seen between mean renal artery diameter and age (right r= -0.158, p=0.0121; left r= -0.017, p= 0.708).Conclusion:The mean diameter and mean length were found to be significantly different between right and left main renal artery and between males and females. A significant weak negative correlation was observed between renal artery diameter and age.

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“…A standard protocol of CT scan was followed, 10,18 on a 16-slice MDCT scanner. 19 Contrast material was given at the rate of 4 ml/second and the patient was instructed to hold his/her breath for 10 seconds and scan was initiated. After a 10 to 15 seconds set delay of the of the contrast agent, acquisition of image data was started.…”

Section: Radiological Assessmentmentioning

confidence: 99%

Anatomical variants of Renal vasculature: A study in adults on multidetector Computerized Tomography angiography scan.

Mohiuddin

Sundus

Raza

et al. 2020

TPMJ

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Objectives: To determine renal artery variation in adults in a subset of Karachi population by using Multidetector Computed Tomography (MDCT) angiography. Study Design: A cross sectional study. Setting: Dr. Ziauddin Hospital, Radiology Department, Karachi. Period: From January, 2017 to June, 2017. Material & Methods: Study participants were 250 individuals, who were presented to Dr. Ziauddin hospital, Karachi, Distribution, number and morphology of renal artery variation were reported on Multidetector computed angiography (MDCTA). Renal artery variation with side of the kidney and gender were analyzed. Data was analyzed on SPSS version 20 (Statistical Package for Social Sciences). Frequencies and percentages were calculated for renal artery variations. Results: Following parameters were observed. Out of total 250 study participants single renal artery was present in 73.6 % (184) individuals and accessory renal artery was present in 26.4% (66) individuals. Accessory renal arteries (ARA) were present in 13.8% (35) individuals and 12.6% (31) individuals on respectively on right and left sides. Among accessory renal arteries superior polar arteries were present in 14.9% (37) kidneys, hilar arteries in 10.2 % (26) kidneys and inferior polar arteries in 1.3 % (3) kidney. Conclusion: A complete knowledge of renal artery variations is essential for surgeons and interventional radiologist especially during procedures such as renal vascular interventions and renal transplant. Frequency of ARA in our studied population is comparable to Asian population.

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Preparative Fasting for Contrast-enhanced CT: Reconsideration

Abstract: There is little evidence that ingestion of clear inert fluid prior to contrast-enhanced CT is a cause of aspiration pneumonia; the length of fasting is variable in any country, being much longer in some hospitals than in others.

Cited by 35 publications

References 28 publications

Frequency and Appropriateness of Fasting Orders in the Hospital

Frequency and Appropriateness of Fasting Orders in the Hospital

Analysis of renal artery morphometery in adults: A study conducted by using Multidetector computed Tomography Angiography

Anatomical variants of Renal vasculature: A study in adults on multidetector Computerized Tomography angiography scan.

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