Multidetector computed tomographic angiography of the cardiovascular system

Burrill, Joshua; Dabbagh, Zaid; Gollub, Frank; Hamady, Mohamed

doi:10.1136/pgmj.2007.061804

Cited by 28 publications

(19 citation statements)

References 57 publications

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“…Approaches like modulation of automatic tube current, increasing the pitch of helical scanning, reducing the tube voltage, reconstructive methods like iterative reconstruction were used. 26,27,28 In our study, we incorporated the use of AIDR reconstructions and automatic modulation of tube current to reduce the patient radiation dose. Thus to summarize, we came across very few studies describing about the association in between renal vascular variations and gender.…”

Section: Discussionmentioning

confidence: 99%

Prevalence of Renal Vascular Variations in Patients Subjected to Contrast CT Abdomen

Agarwal¹,

Aiyappan²,

Mathuram³

et al. 2019

IJCMSR

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To determine the prevalence of renal artery and renal vein variations in the patients subjected to contrast CT abdomen and to assess the gender specific variations in renal artery and renal vein. Material and methods: The study was conducted in the department of Radiodiagnosis, SRM Medical College, Kattankulathur from March 2017 to August 2018. A total of 223 patients who were subjected to MDCT contrast abdomen study for various complaints were evaluated for the renal vascular variations. The study was done in two phases arterial and venous with field of view from the dome of diaphragm to the iliac crest. The axial images obtained were post-processed by MPR, MIP and VR techniques. Results: Renal vascular variants are highly variable as observed in the previous studies. In our study, the most common renal artery variation was accessory renal artery and most common renal vein variation was multiple renal veins. No statistically significant association between gender and Renal artery, Renal vein or main renal artery lumen size was observed. Maximum renal arteries both on right and left side were seen arising at the level of L1. Conclusions: MDCT is ideal for imaging. RA and RV variations including the number and course. Accessory renal artery is the most frequently observed variation in renal arteries and multiple renal vein is the most common variation of right renal vein. Retroaortic left renal vein was the most common variation observed on left side. Between gender and RA or RV no statistically significant association was demonstrated.

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Section: Discussionmentioning

confidence: 99%

Prevalence of Renal Vascular Variations in Patients Subjected to Contrast CT Abdomen

Agarwal¹,

Aiyappan²,

Mathuram³

et al. 2019

IJCMSR

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“…4 The high cost, and procedure-related morbidity and mortality associated with coronary angiography have motivated the search for alternatives to this invasive procedure. 20 In an article published by Goldberg in 1990, CT and magnetic resonance (MR) were not widely used. It was reported to be limited by prolonged imaging time, slice thickness, radiation and cost.…”

Section: Diagnosismentioning

confidence: 99%

An unusual case of aorta–right atrial tunnel with windsock aneurysm: imaging, diagnosis and treatment

Khan

Scholtz

Snyders

et al. 2017

CVJA

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The first successfully diagnosed and treated case of aortaright atrial tunnel was reported by Coto et al. in 1980. The most common cause of aorta-right atrial tunnel is a ruptured aneurysm of the sinus of Valsalva. Sinus of Valsalva aneurysms had been reported as early as 1840 by Thurnam; these were diagnosed at autopsy. With the advances in radiology, many cases of aorta-right atrial tunnel have been reported since then, each with its own subtle variations.We report on a unique case of aorta-right atrial tunnel with a windsock aneurysm in the right atrium. A 55-yearold male presented with abdominal pain and the chest X-ray revealed cardiomegaly. On further investigation with echocardiography and computed tomography angiography, there was an incidental aorta-right atrial tunnel with a windsock aneurysm in the right atrium. As early as 1840, aneurysms of the sinus of Valsalva were described by Thurnam; these were diagnosed through autopsies. 1 The first successfully diagnosed and treated case of aorta-right atrial tunnel was reported by Coto et al. in 1980. 2 Initially, diagnosis was limited to echocardiography and cardiac catheterisation, but with the advent of 64-slice computed tomography (CT) angiography, diagnostic accuracy and accessibility has improved. We present here a unique case of aorta-right atrial tunnel with a windsock aneurysm in the right atrium, diagnosed with echocardiography and CT angiography and successfully treated with surgery. Case reportA 55-year-old male patient presented with abdominal pain and was admitted to hospital for the treatment of a kidney stone. Two days after the stone was removed and a stent was placed, he complained again of severe abdominal pain, nausea and vomiting. He was thoroughly examined; the abdominal CT and ultrasound were normal. The cause of abdominal pain was due to a urinary tract infection, which he had contracted after the urinary tract stone was removed. The abdominal symptoms were unrelated to the cardiac findings. The chest radiograph, however, demonstrated cardiomegaly. He was then referred to a cardiologist.The patient had no history of cardiac disease and reported no chest pain or palpitations. He had normal effort tolerance. In retrospect he recalled some ankle swelling during the afternoons and mild peri-orbital swelling during the mornings. His surgical history included a Nissen fundoplication.A transthoracic echocardiogram demonstrated a large left atrium and left ventricle. No left ventricular hypertrophy was reported. Ejection fraction on M-mode was normal. A significant finding was an impression on the enlarged right atrium from a possible adjacent lesion.The transoesophageal echocardiogram (TEE) confirmed normal valvular and left ventricular function. There was an aneurysm of the aortic sinus with a windsock in the right atrium, possibly increasing the pressure and volume in the right atrium (Figs 1-3).A CT angiogram was performed subsequent to the TEE. There was aneurysmal dilatation of the right coronary sinus with a tortuous dilated t...

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“…Multidetector computed tomography (which includes computed tomography angiography) represents a relatively new, relatively noninvasive method of assessing the coronary arteries and has the capacity to identify the presence of early CAD (o50% lumen obstruction). 37 Multidetector computed tomography reports a coronary calcium score, which incorporates the size and density of all calcium deposits in atherosclerotic plaques throughout the coronary vasculature and predicts cardiac events. Using multidetector computed tomography, Jackson and Padley 23 reported an elevated coronary calcium score (450) in 11 out of 20 men with ED and without cardiac symptoms; only two of them had an abnormal exercise electrocardiography stress test.…”

Section: Physical Examinationmentioning

confidence: 99%

How to save a life during a clinic visit for erectile dysfunction by modifying cardiovascular risk factors

Schwartz

Kloner

2009

Int J Impot Res

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Erectile dysfunction (ED) is an early marker for systemic atherosclerosis and is a predictor for coronary artery disease and cardiac events. The aim of this paper is to convey the importance of addressing cardiovascular risk factors in patients with ED and to inform urologists as well as other physicians who are not specialized in cardiology how to carry out a basic cardiovascular evaluation, including history, physical examination and objective data. We review the evidence and pathophysiology linking ED to cardiovascular disease, and then describe how to carry out a basic cardiovascular evaluation. We present data from the literature showing that appropriate use of lifestyle modifications and medical therapy has a positive effect on mortality, on numerous cardiovascular end points and on ED. Suggestions of when to refer the ED patient to an internist or cardiologist are provided. Identifying and treating cardiovascular risk factors may not only benefit the patient's ED, but it might also save the patient's life.

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Multidetector computed tomographic angiography of the cardiovascular system

Cited by 28 publications

References 57 publications

Prevalence of Renal Vascular Variations in Patients Subjected to Contrast CT Abdomen

Prevalence of Renal Vascular Variations in Patients Subjected to Contrast CT Abdomen

An unusual case of aorta–right atrial tunnel with windsock aneurysm: imaging, diagnosis and treatment

How to save a life during a clinic visit for erectile dysfunction by modifying cardiovascular risk factors

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