Showing posts with label positron emission tomography. Show all posts
Showing posts with label positron emission tomography. Show all posts

Thursday, 18 January 2024

Management of Endocarditis Using Scintigraphy: An Overview | Chapter 7 | Advanced Concepts in Medicine and Medical Research Vol. 12

Introduction: Infective endocarditis (IE) is a very heterogeneous condition for several reasons. The diagnosis can be notoriously difficult. A delay in diagnosis can have severe consequences. Even proper application of the Duke criteria cannot solve all cases. For this reason, positron emission tomography / computer tomography (PET/CT) with 18F-fluorodesoxyglucose (18FDG) has been proposed in the 2015 guidelines of the European Society of Cardiology. What has been the effect of these guidelines thus far?

Methods: A probe of the literature has been performed in PubMed, from 2016 on using the search terms “endocarditis AND PET”. PET with 18-fluoro-desoxyglucose (18-FDG) as marker for increased metabolism can serve such as in inflammation, infection and malignancies.

Results: One hundred items were identified, of which 41 documents could be retained. However, only 16 were original series, mostly with low numbers. The other manuscripts were editorials, comments, reviews and “image vignettes”. PET/CT increased the sensitivity of the Duke criteria in cases of prosthetic valve endocarditis (PVE), but in a much lesser degree in native valve endocarditis (NVE). Patient preparation should be standardized in order to reduce the uptake of 18FDG by the myocardium. This includes low carbohydrate – high fat diet, fasting and unfractionated heparin administration. Furthermore, image acquisition and processing (quantification, correction for attenuation, taking into account implanted metallic materials) should also be standardized. Infection and inflammation of other causes such as postoperative healing and foreign body reaction should be discerned because of their different management and outcome. Scintigraphic techniques, based on radiolabeled WBC can serve as complement for distinction between sterile inflammation and infection. Effects of antibiotics (negative imaging results before cure) and inflammation (especially healing after operation and use of biological glue materials) should be taken into account. Radiolabeled white blood cell scintigraphy could be a valuable adjunct in these cases. The detection of extra- cardiac foci (especially tumors which can serve as port of entry and septic emboli) is an additional advantage.

Conclusion: PET/CT seems a valuable tool to increase the accuracy in diagnosing IE, especially PVE. Early postoperative cases must be interpreted with caution. To confirm the value of PET/CT, the major centers should standardize their method. This allows comparison of results of larger patient groups, which could be collected in the International Collaboration of Endocarditis – Prospective Cohort Study. A standardized method for patient preparation, imaging acquisition and processing is needed. This can best be undertaken through the International Collaboration on Endocarditis– Prospective Control Study ICE-PCS. Nuclear cardiologists should also be included in “endocarditis teams.

Author(s) Details:

Wilhelm P. Mistiaen,
Department of Health and Social Care, Artesis Plantijn University College Antwerp, Belgium and Faculty of Medicine and Health Sciences, University of Antwerp, Belgium.

Please see the link here: https://stm.bookpi.org/ACMMR-V12/article/view/12972

Wednesday, 26 July 2023

Basics of Cancer: Prognosis and Diagnosis | Chapter 12 | Current Progress in Medicine and Medical Research Vol. 4

 Cancer is a affliction characterised with uncontrolled container growth and conception. Cancer is the second leading cause of death afterwards cardiovascular diseases. Cancer is a very complex disease that can affects some organ or cell of the party. Cancer precedes accompanying the formation of cell bulk referred to as tumour. There are two types of tumours, viz., mild and malignant. There are various types of cancers which are broadly top-secret into carcinomas, sarcomas, leukemia and lymphomas, which are further subclassified into several added types. Staging of cancer is very main since it acts as a marker of forecast. Staging of cancer too follows different structures of classification of which majorly secondhand in clinical practice is TNM arranging system. Diagnosis involves lab, imaging, specific and surgical processes, of which secondary diagnosis being biopsy (surgical method). Treatment of cancer contains one or more modalities contingent upon the stage, location and type of the cancers. Various approaches of treatment convenient for cancer are surgery, a destructive agent, radiotherapy, endocrine therapy, hypothermia and cryotherapy, immunotherapy, stem cell healing and gene medicine. The current chapter helps in understanding the basics of malignancy taken from the description, types, classification of stages based on differing system, various demonstrative techniques feasible along with different approaches of cancer treatments. Efforts are created to simplify the complex healing topic into easy comprehensible context.

Author(s) Details:

Nithish Sattoju,

Department of Pharmacy Practice, Chilkur Balaji College of Pharmacy, Hyderabad, Telangana, India.

 

Anvesh Maram,

Clarivate Analytics Pvt. Ltd., Hyderabad, Telangana, India.

Please see the link here: https://stm.bookpi.org/CPMMR-V4/article/view/11366

Friday, 25 November 2022

Advances in Neuroimaging Research of Electroconvulsive Therapy in Depression| Chapter 6 | Current Innovations in Medicine and Medical Science Vol. 8

 The aim of electroconvulsive therapy (ECT) is to responsibility disease symptoms avoid a small amount of energetic current through the patient's head, inducing convulsions throughout the corpse.  Although its treatment machine is yet unknown, electroshock therapy can significantly responsibility the clinical symptoms of sufferers with serious despair. This review summarizes the recent progress in neuroimaging research on ECT for bigger depression. Due to the swift advancement of neuroimaging technology, it is immediately necessary to investigate the neurobiological machines underlying major cavity from the perspectives of intellect structure, function, and metabolism. Research has proved that electroconvulsive therapy can, to a certain extent, correct patients' brain function, absorption, and even brain building.  Currently, an increasing number of neuroimaging studies adopt miscellaneous neuroimaging techniques including working magnetic resonance image (fMRI), positron emission tomography (PET), drawing resonance spectroscopy (MRS), structural drawing resonance imaging (sMRI) and spread tensor imaging (DTI) to reveal the affecting animate nerve organs effects of ECT. Based on the neuroimaging studies, this review desires that the neurobiological mechanism of ECT may search out modulate the functional endeavor and connectivity or neural fundamental plasticity in distinguishing brain regions to the rational level, to achieve the therapeutic effect.

Author(s) Details:

Xin-Ke Li,
College of Medical Informatics, Chongqing Medical University, Chongqing-400016, P.R.China.

Hai-Tang Qiu,
Mental Health Center, the First Affiliated Hospital of Chongqing Medical University, Chongqing-400016, P.R. China.

Please see the link here: https://stm.bookpi.org/CIMMS-V8/article/view/8723