Vascular imaging in renal donors

Aghayev, Ayaz; Gupta, Sumit; Dabiri, Borna E.; Steigner, Michael L.

doi:10.21037/cdt.2018.11.02

Cited by 12 publications

(3 citation statements)

References 51 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The global increase in the prevalence of end-stage renal disease (ESRD) confronts a great challenge for healthcare professionals. The ultimate treatment for ESRD is renal transplantation, apart from dialysis, which can greatly improve the quality of a patient’s life [ 1 ]. In developing countries, including Pakistan, renal transplantation has increased significantly, but very few studies have been conducted to assess renal vascular variations.…”

Section: Introductionmentioning

confidence: 99%

Vascular Variations and Incidental Pathologies in Potential Living Renal Donors Using 160-Slice Multidetector Computed Tomography Angiography

Mahreen,

Rizwan Ahmed,

Qureshi

et al. 2023

Cureus

View full text Add to dashboard Cite

Introduction:The aim of the study is to evaluate the vascular variations and incidental pathologies in potential living renal donors using 160-slice multidetector computed tomography (MDCT) angiography.Methods: This is an observational study conducted at the Department of Radiology from January 2017 to May 2022. In this study, we performed retrospective data analysis of 61 CT renal angiograms, totaling 122 kidneys of potential renal donors, using a Toshiba 160 slice MDCT scanner with a four-phase CT image acquisition protocol, performed for pre-transplant workup. All patients had normal renal functions.Results: Of our 61 patients, 34 (55.7%) were male and 27 (44.3%) were female, and their mean age was 31.2 ± 9.4 years. We have found 31 (50.8%) variations in the right renal arteries and 21 (34.4%) in the left renal arteries. Of these patients, 13 had bilateral renal arterial variations. The late confluence of the renal vein was found in 3.3% of males, multiple right renal veins in 7 (11.5%), and left renal veins in 2 (3.3%). By distributing the data according to gender, we noticed more diversity in the renal vessels of male patients. Left renal artery variations were more frequent in males (16, 76.2%) than in females (5, 23.8%), and they were statistically significant (p=0.02). Likewise, variations in the right renal arteries were also more frequently found in males (19, 61.3%) as compared to females (12, 38.7%). Right renal vein variations were more common in males (9, 81.8%) as compared to females (2, 18.2%) (p=0.05). Conclusion:Frequent renal vascular variations and incidental pathologies in potential living donors were found by MDCT examination, and these vascular variations should be analyzed before renal transplant.

show abstract

Section: Introductionmentioning

confidence: 99%

Vascular Variations and Incidental Pathologies in Potential Living Renal Donors Using 160-Slice Multidetector Computed Tomography Angiography

Mahreen,

Rizwan Ahmed,

Qureshi

et al. 2023

Cureus

View full text Add to dashboard Cite

show abstract

“…11,12 However, the contrast of the vessel wall is not sufficient high to visualize and subsequently measure the degree of vessel wall invasion. 13,14 Given its exquisite soft tissue contrast, MRI has been used in imaging abnormalities affecting various blood vessels in different vascular systems without using contrast agents. 15,16 The most common application of vessel wall MRI is to identify and evaluate intracranial and carotid atherosclerotic plaques and thrombus.…”

mentioning

confidence: 99%

“…Contrast‐enhanced computed tomography can show the arteries surrounding the tumor 11,12 . However, the contrast of the vessel wall is not sufficient high to visualize and subsequently measure the degree of vessel wall invasion 13,14 . Given its exquisite soft tissue contrast, MRI has been used in imaging abnormalities affecting various blood vessels in different vascular systems without using contrast agents 15,16 .…”

mentioning

confidence: 99%

Value of Non‐Contrast‐Enhanced Vessel Wall MR Imaging in Assessing Vascular Invasion of Retroperitoneal Tumors

Cui,

Zhao,

Chen

et al. 2023

Magnetic Resonance Imaging

View full text Add to dashboard Cite

BackgroundDue to their location and growth patterns, retroperitoneal tumors often involve the surrounding blood vessels. Clinical decisions on a proper treatment depend on the information on this condition. Evaluation of blood vessels using non‐contrast‐enhanced vessel wall MRI may provide noninvasive assessment of the extent of tumor invasion to assist clinical decision‐making.PurposeTo investigate the performance and potential of non‐contrast‐enhanced vessel wall MRI in evaluating the degree of vessel wall invasion of retroperitoneal tumors.Study TypeProspective.PopulationThirty‐seven participants (mean age: 60.59 ± 11.77 years, 59% male) with retroperitoneal tumors close to vessels based on their diagnostic computer tomography.Field Strength/Sequences3 T; vessel wall MRI sequences: two‐dimensional T2‐weighted MultiVane XD turbo spin‐echo (2D‐T2‐MVXD‐TSE) and three‐dimensional T1‐weighted motion sensitized driven equilibrium fat suppression turbo spin‐echo (3D‐T1‐MSDE‐TSE) sequences; conventional MRI sequences: T2‐weighted fat suppression turbo spin‐echo (T2‐FS‐TSE), T2‐weighted turbo spin‐echo (T2‐TSE), modified Dixon T1‐weighted fast field echo (T1‐mDixon‐FFE), and diffusion‐weighted echo planar imaging (DWI‐EPI) sequences.AssessmentAll patients underwent preoperative imaging using both non‐contrast conventional and vessel wall MRI sequences. Images obtained from conventional and vessel wall MRI sequences were evaluated independently by three junior radiologists (3 and 2 years of experience in reading MRI) and reviewed by one senior radiologist (25 years of experience in reading MRI) to assess the degree of vessel wall invasion. MRI were validated results from the clinical standard diagnosis based on surgical confirmation or histopathological reports. Interobserver agreement was determined based on the reports from three readers with similar years of experiences. Intraobserver variability was assessed based on categorizing and recategorizing the vessels of 37 patients 1 month apart.Statistical TestsIntra‐class correlation efficient (ICC), Chi‐square test, McNemar test, area under the receiver‐operating characteristic curve (AUC), Delong test, P < 0.05 was considered significant.ResultsThe accuracy of vessel wall MRI (91.96%, 95% CI: 85.43–95.71; 103 of 112) in detecting the degree of vessel wall invasion was significantly higher than that of conventional MRI (75%, 95% CI: 66.24–82.10; 84 of 112). The interobserver variability or reproducibility in categorization of the degree of vascular wall invasion was good in evaluating images from conventional and vessel wall MRI sequences (ICC = 0.821, 95% CI: 0.765–0.867 and ICC = 0.881, 95% CI: 0.842–0.913, respectively).Data ConclusionDiagnosis of vessel wall invasion of retroperitoneal tumors and assessment of its severity can be improved by using non‐contrast‐enhanced vessel wall MRI.Evidence Level1Technical EfficacyStage 3

show abstract

Emerging advances in fluorescence imaging and phototherapy of arthritis

Wang,

Dai,

Shao

et al. 2023

Interdisciplinary Materials

View full text Add to dashboard Cite

Arthritis is a chronic disease whose etiology is difficult to pinpoint, and the difficulty of arthritis detection and subsequent treatment causes enormous distress to patients. In recent years, thanks to advances in medicine and detection, a variety of treatment modalities for arthritis have emerged. The combination of emerging detection technologies with different anti‐inflammatory medications and even advances in surgical techniques have all played a positive role in the treatment of arthritis. In the present work, we have collected relevant literature on fluorescence (FL) imaging and phototherapy of arthritis in recent years, intending to reveal the advantages and potential application value of FL imaging and phototherapy for researchers. Meanwhile, due to the shortcomings of FL imaging and phototherapy in the diagnosis and treatment of arthritis, we advocate overcoming these difficulties in future research.

show abstract

Vascular imaging in renal donors

Cited by 12 publications

References 51 publications

Vascular Variations and Incidental Pathologies in Potential Living Renal Donors Using 160-Slice Multidetector Computed Tomography Angiography

Vascular Variations and Incidental Pathologies in Potential Living Renal Donors Using 160-Slice Multidetector Computed Tomography Angiography

Value of Non‐Contrast‐Enhanced Vessel Wall MR Imaging in Assessing Vascular Invasion of Retroperitoneal Tumors

Emerging advances in fluorescence imaging and phototherapy of arthritis

Contact Info

Product

Resources

About