Home > Authors and editors

Lachezar Manchev

Trakia University

Associate Professor Lachezar Ivanov Manchev (MD, PhD) graduated in medicine from the Medical Faculty, Trakia University, Stara Zagora in 2010. Since 2010, he has worked as a radiologist in the Department of Diagnostic Imaging at the University Hospital, Stara Zagora. Between 2013 and 2018, he was assistant professor in the Department of Radiology in the Medical Faculty, Trakia Universtity, Stara Zagora. Since 2018, he has been an associate professor in Radiology at the same university. In his practice, he presents lectures and tutorials in Bulgarian to medical, nursing, midwifery and rehabilitation students, in subject areas including X-ray, CT, MRI, angiography, mammography, ultrasound and DSG. Dr Manchev also delivers lectures and tutorials in English to medical students from the United Kingdom and the Republic of Ireland. Since 2016, he works as a part-time lecturer for the Faculty of Public Health and Health Care, University Professor Doctor Asen Zlatarov, Burgas, Bulgaria.

1books edited

2chapters authored

Latest work with IntechOpen by Lachezar Manchev

Diagnostic imaging has undergone many changes over the last several years. Technical developments have defined Magnetic Resonance Imaging (MRI) as the leading diagnostic modality in different diseases. MRI is definitive and sensitive and the current requirements of medicine call for radiologists to be proficient in its use. This book provides complete and detailed information about the fast-developing field of MRI from physicians, radiologists, and other clinical specialists. It is a practical guide to using MRI in areas such as cardiology and pulmonology, among others.

Magnetic Resonance Imaging

Magnetic Resonance Imaging

Edited by Lachezar Manchev

Chapters authored

Diagnostic Imaging of Carotid Artery

By Lachezar Manchev

In the study of carotid arteries, the different imaging techniques allow to analyze various diseases like stenoses, aneurysms, thromboses, dissections, diseases caused by atherosclerotic plaques or congenital abnormalities. The diagnostic modalities that are used to image the carotid artery diseases are digital subtraction angiography (DSA), duplex ultrasound (DUS), computed tomography angiography (CTA), and magnetic resonance angiography (MRA). The goal of the diagnostic imaging is to provide screening and to detect diseases at its earliest and most treatable stage. As initial screening study, the radiologists recommend DUS. It is a safe and painless way to produce pictures of the inside of the body using sound waves. It assesses blood flow in the carotid arteries, measures the speed of the blood flow, and estimates the diameter of a blood vessel and degree of obstruction. Digital subtraction angiography (DSA) has assumed a major role in the evaluation of occlusive cerebrovascular disease. While digital subtraction angiography (DSA) is still considered the gold standard, it has increasingly been replaced by computed tomography angiography (CTA) or magnetic resonance angiography (MRA) during the last years. Modern imaging studies like CTA and MRI allow to obtain three-dimensional reconstruction of anatomic structures and pathological abnormalities. Computed tomography angiography (CTA) of carotid arteries is a standardized procedure with excellent image quality but related with high radiation exposure. The rapid technical evolution in hardware and software allows even smaller imaging centers to perform high-quality vessel imaging. During the last decade, CTA came up with substantial progress in terms of accuracy in stenosis and aneurysm detection. Magnetic resonance angiography (MRA) is increasingly used as a noninvasive method to assess carotid arteries. Diseases like carotid artery dissections could be detected by using MRA or CTA.

Part of the book: Carotid Artery

Introductory Chapter: Magnetic Resonance Imaging in Internal Medicine

By Lachezar Manchev

Part of the book: Magnetic Resonance Imaging

Related collaborators

Vincenzo Silani

University of Milan , Italy

Jurek Olszewski

Medical University of Lodz , Poland

Renato Casana

Istituto Auxologico Italiano , Italy

Chiara Malloggi

Istituto Auxologico Italiano , Italy

Valerio Stefano Tolva

Andrea Odero Jr

Istituto Auxologico Italiano , Italy

Piotr Niewiadomski

Medical University of Lodz , Poland

Gianfranco Parati

University of Milano-Bicocca , Italy

Richard Bulbulia

University of Oxford , United Kingdom

Alison Halliday

University of Oxford , United Kingdom