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ESTUDIOS


01 octubre 2015

ENDOVASCULAR TODAY. Ask the Experts: What is your practice’s current IVC filter retrieval protocol, and in which cases do you deviate from it?

With Deepak Sudheendra, MD, RPVI; Marie-France Giroux, MD; Matthew S. Johnson, MD, FSIR; Erin Murphy, MD; and Mark J. Garcia, MD, MS, FSIR

Since the introduction of retrievable filters, our division has kept a database of every patient in whom a retrievable filter was placed by the interventional radiology department. Over the years as we started to learn more about the complications of retrievable filters, we became more aggressive in reaching out to patients for filter retrieval. Today, our database has matured to include more detailed information such as the reason for filter placement, type of retrievable filter, and the referring physician to further improve patient follow-up.

01 octubre 2015

ENDOVASCULAR TODAY. Peripheral Rotablator™ Atherectomy: The Below-the-Knee Approach to Address Calcium Head On

By Sonya S. Noor, MD, FACS

There are multiple endovascular options for treatment of infrainguinal disease, but treatment of severe calcific disease of the superficial femoral artery (SFA), popliteal artery, and tibial vessels remains a challenge. Peripheral atherectomy is a unique treatment modality because it allows debulking of plaque with luminal gain and minimal barotrauma. This results in less injury to the vessel during initial treatment and theoretically reduces hyperplastic reaction to the initial treatment. In severely calcific vessels, calcium debulking changes the vessel wall compliance with the removal of calcium. It can then be treated with low-pressure balloon inflation with minimal injury to the vessel wall. This is now a particularly attractive concept with the availability of drug-coated balloons and drug-eluting stents, as the vessel can be prepared with atherectomy before delivery of these devices. This may ensure adequate drug delivery to the tissue, thereby reducing intimal hyperplastic reaction and increasing durability of the procedures. Prevailing concerns with atherectomy (ie, dissection, perforation, clinically significant embolization, and durability) have prevented the widespread use of atherectomy.

01 octubre 2014

AMERICAN JOURNAL OF ROENTGENOLOGY. Severe Acute Respiratory Syndrome: 11 Years Later—A Radiology Perspective

Apoorva Gogna, Kiang Hiong Tay and Bien Soo Tan

OBJECTIVE. Severe acute respiratory syndrome (SARS) was a highly virulent atypical pneumonia caused by a novel coronavirus that resulted in a pandemic in 2003. Singapore was one of the most severely affected countries, and SARS took a heavy toll on our health care system. The lessons learned during the pandemic have shaped our national contagion response plan and have proved valuable in subsequent epidemics. We describe the lessons learned for the radiology department.

01 octubre 2014

AMERICAN JOURNAL OF ROENTGENOLOGY. Essentials of Endovascular Abdominal Aortic Aneurysm Repair Imaging: Postprocedure Surveillance and Complications

Andrew C. Picel and Nikhil Kansal

OBJECTIVE. Lifelong postprocedural imaging surveillance is necessary after endovascular abdominal aortic aneurysm repair (EVAR) to assess for complications of endograft placement, as well as device failure and continued aneurysm growth. Refinement of the surveillance CT technique and development of ultrasound and MRI protocols are important to limit radiation exposure.

01 octubre 2014

AMERICAN JOURNAL OF ROENTGENOLOGY. Multidimensional MDCT Angiography in the Context of Transcatheter Aortic Valve Implantation

Ajit H. Goenka, Paul Schoenhagen, Michael A. Bolen and Milind Y. Desai

OBJECTIVE. Transcatheter aortic valve implantation has emerged as a viable treatment alternative for patients with severe aortic stenosis who are not surgical candidates. Multidimensional (3D and 4D) MDCT angiography plays a critical role in the safety, success, and outcome of an institutional transcatheter aortic valve implantation program.

01 octubre 2015

CARDIOVASCULAR AND INTERVENTIONAL RADIOLOGY. Introducing the Concept of the Minimally Important Difference to Determine a Clinically Relevant Change on Patient-Reported Outcome Measures in Patients with Intermittent Claudication

Anne P. Conijn, Wilma Jonkers, Ellen V. Rouwet, Anco C. Vahl, Jim A. Reekers, Mark J. W. Koelemay

Purpose: The minimally important difference (MID) represents the smallest change in score on patient-reported outcome measures that is relevant to patients. The aim of this study was to introduce the MID for the Vascular Quality of Life Questionnaire (VascuQol) and the walking impairment questionnaire (WIQ) for patients with intermittent claudication (IC).

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