Utility of Cardiac Compute Tomography in Patients with Left Ventricular Assist Devices

AbstractPurpose of ReviewThe number of left ventricular assist device implants has increased significantly in the last decade. Left ventricular assist device (LVAD) optimization, trouble-shooting complications, and surgical planning require a multi-modality imaging approach. Echocardiography remains the imaging modality of choice, particularly for physiological evaluation but accurate anatomical evaluation of the entirety of the LVAD is often challenging if not impossible. Cardiac computed tomography (CCT) offers additional information that is valuable in taking care of these complex patients. The purpose of this review is to understand the nuances of LVAD imaging and areas where CCT can aid LVAD evaluation and management.Recent FindingsCCT has a well-established role in trouble-shooting complications particularly inflow and outflow cannula-related anatomic complications from suction and kinking. Even though the literature is scarce, there is evolving data to suggest that adverse inflow and outflow cannula positions may result in unfavorable outcomes. There is more interest in novel mechanisms of device implantation and planning for which data set from CCT is ideal. Functional evaluation of the right ventricle with CCT is becoming more sophisticated and maybe particularly useful in this patient population. Development in CCT technology has helped minimize safety concerns and improved image quality with reduction in LVAD-related artifacts.SummaryCCT is an important adjunct mod...
Source: Current Cardiovascular Imaging Reports - Category: Radiology Source Type: research

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Publication date: Available online 22 September 2020Source: Academic RadiologyAuthor(s): Waqas T. Qureshi, Rohit Malhotra, Eric J. Schmidlin, Mohamed Ahmed, Amartya Kundu, Abdul Moiz Hafiz, Jennifer Walker, Nikolaos Kakouros
Source: Academic Radiology - Category: Radiology Source Type: research
Publication date: Available online 21 September 2020Source: Academic RadiologyAuthor(s): Alireza Zali, Mohammad-Reza Sohrabi, Ali Mahdavi, Nastaran Khalili, Morteza Sanei Taheri, Ali Maher, Mohammadmehdi Sadoughi, Afshin Zarghi, Seyed Ali Ziai, Abbas Arjmand Shabestari, Mehrdad Bakhshayeshkaram, Hamidreza Haghighatkhah, Babak Salevatipour, Alireza Abrishami, Masoomeh Raoufi, Pooneh Dehghan, Arash Khameneh Bagheri, Reza Jalili Khoshnoud, Khatereh Hanani
Source: Academic Radiology - Category: Radiology Source Type: research
In conclusion, this study explores the physiological in-situ response of knee cartilage and meniscus, based on stress MRI, and as a function of loading intensity, joint alignment, histological tissue status, and biomechanical properties, as another step towards clinical implementation. PMID: 32957197 [PubMed - in process]
Source: Journal of the Mechanical Behavior of Biomedical Materials - Category: Materials Science Authors: Tags: J Mech Behav Biomed Mater Source Type: research
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Source: Journal of the Mechanical Behavior of Biomedical Materials - Category: Materials Science Authors: Tags: J Mech Behav Biomed Mater Source Type: research
Abstract Postmenopausal osteoporosis causes severe loss of bone quantity and quality in limb bone but has a lesser effect on jaw bone. Thus, the objective of this study was to examine whether ovariectomy (OVX) and mastication alter the regional variation of jaw bone characteristics. Sprague-Dawley female rats (6 months) were given a bilateral OVX or a sham operation (SHAM) (n = 10 for each group). After 2 months post-OVX, the hemi-mandible from each rat was dissected. A micro-computed tomography based mean, standard deviation (SD), the lower and upper 5th percentile (Low5 and High5) values of tissue mine...
Source: Journal of the Mechanical Behavior of Biomedical Materials - Category: Materials Science Authors: Tags: J Mech Behav Biomed Mater Source Type: research
CONCLUSION: The prevalence of asymptomatic SARS-CoV-2 infection was 5%, which is much lower than that previously reported. This finding suggests that careful interviews and follow-ups should be performed to identify SARS-CoV-2 infections. Cough, fever, myalgia, rhinorrhea or nasal congestion, and diarrhea are adequate screening criteria for covering all symptoms of SARS-CoV-2 infection. Further evaluation is required to create representative screening criteria for COVID-19. PMID: 32959547 [PubMed - in process]
Source: Journal of Korean Medical Science - Category: Biomedical Science Tags: J Korean Med Sci Source Type: research
Authors: Sato D, Saito H, Suzuki T, Ota T Abstract Middle meningeal artery (MMA) and middle meningeal vein (MMV) fistula is a rare lesion. Hemorrhagic propensity for this pathology has not been widely recognized. We encountered a case of idiopathic MMA-MMV fistula presenting as intracerebral hemorrhage. MMA and MMV showed a single fistula and the enlarged MMV coiled around the MMA, resembling a varix. We treated the case using endovascular techniques. This case highlights the anatomy along the course of the MMV and is unique, since no backward leptomeningeal drainage was observed. A bone defect in the meningeal gro...
Source: Interventional Neuroradiology - Category: Radiology Tags: Interv Neuroradiol Source Type: research
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Source: Cardiology - Category: Cardiology Source Type: research
Abstract This editorial provides a brief overview of the thematic issue and the papers in it. The thematic issue is proposed to help chemists and biologists track the most recent advances in drug discovery and cancer diagnoses. The process of drug discovery involves the identification and validation of biological targets, the identification and optimization of lead compounds, preclinical development, and clinical trials. Cancer is a major public health problem in the world. The results of tissue diagnosis, blood tests, computed tomography scans, and cytogenetic analyses can provide informative clues about molecula...
Source: Current Topics in Medicinal Chemistry - Category: Chemistry Authors: Tags: Curr Top Med Chem Source Type: research
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Source: Asian Spine Journal - Category: Orthopaedics Tags: Asian Spine J Source Type: research
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