scholarly journals The role of quantitative computed tomography and magnetic resonance imaging in diagnosis and follow-up of osteoporosis: A review

2016 ◽  
Vol 62 (3) ◽  
pp. 288-295
Author(s):  
Derya Demirbağ Kabayel
Keyword(s):  
Magnetic Resonance Imaging ◽  
Computed Tomography ◽  
Magnetic Resonance ◽  
Quantitative Computed Tomography ◽  
Resonance Imaging

scholarly journals Radiological Anatomy of Stomach and Duodenum with Clinical Significance

2021 ◽  
Author(s):  
Zainab Vora ◽  
Ankur Goyal ◽  
Raju Sharma
Keyword(s):  
Magnetic Resonance Imaging ◽  
Computed Tomography ◽  
Magnetic Resonance ◽  
Clinical Significance ◽  
Normal Anatomy ◽  
Resonance Imaging ◽  
Radiological Anatomy ◽  
Current Role ◽  
Accurate Imaging

AbstractAnatomy is the key to accurate imaging interpretation. It is essential for radiologists to thoroughly understand the normal anatomy and spatial relationships of the stomach and duodenum to accurately localize the site of abnormality. In this article, we describe in detail the gross and applied radiological anatomy of the stomach and duodenum, and the current role of various radiological investigations (including barium studies, endoscopic ultrasonography, computed tomography, and magnetic resonance imaging) in the evaluation of the diseases involving the stomach and duodenum.

scholarly journals Imaging of larynx: Diagnostic value of computed tomography and magnetic resonance imaging

2009 ◽  
Vol 56 (3) ◽  
pp. 39-44
Author(s):  
R.M. Maksimovic ◽  
B.A. Banko ◽  
J.P. Milovanovic
Keyword(s):  
Magnetic Resonance Imaging ◽  
Computed Tomography ◽  
Magnetic Resonance ◽  
Regional Lymph Node ◽  
Diagnostic Value ◽  
Resonance Imaging ◽  
Precise Diagnosis ◽  
Node Metastases ◽  
Magnetic Resonance Imaging Mri

Computed tomography (CT) and magnetic resonance imaging (MRI) are enabling more precise diagnosis and treatment planning in patients with diseases of the larynx. The aim of this article is to describe the role of these methods in assessment of the laringeal diseases and key local anatomic characteristics important for spread of the disease. CT and MRI have a valuable contribution to the staging of the tumors due to the possibility to show the relationship to the ventricular complex, involvement of the subumucosal spaces, defining craniocaudal and anterposterior extension, laringeal cartilage invasion, as well as regional lymph node metastases.

Cardiac Computed Tomography and Magnetic Resonance Imaging of the Tricuspid Valve: Preprocedural Planning and Postprocedural Follow-up

2022 ◽  
Vol 11 (1) ◽  
pp. 27-40
Author(s):  
Bernardo B.C. Lopes ◽  
Go Hashimoto ◽  
Vinayak N. Bapat ◽  
Paul Sorajja ◽  
Markus D. Scherer ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Computed Tomography ◽  
Magnetic Resonance ◽  
Tricuspid Valve ◽  
Cardiac Computed Tomography ◽  
Resonance Imaging

scholarly journals Computed Tomography Perfusion, Magnetic Resonance Imaging, and Histopathological Findings After Laparoscopic Renal Cryoablation: An In Vivo Pig Model

2016 ◽  
Vol 16 (4) ◽  
pp. 406-413 ◽  
Author(s):  
Tommy Kjærgaard Nielsen ◽  
Øyvind Østraat ◽  
Ole Graumann ◽  
Bodil Ginnerup Pedersen ◽  
Gratien Andersen ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Computed Tomography ◽  
Magnetic Resonance ◽  
Central Zone ◽  
Peripheral Zone ◽  
Scar Tissue ◽  
Resonance Imaging ◽  
Computed Tomography Perfusion ◽  
Laparoscopic Assisted

The present study investigates how computed tomography perfusion scans and magnetic resonance imaging correlates with the histopathological alterations in renal tissue after cryoablation. A total of 15 pigs were subjected to laparoscopic-assisted cryoablation on both kidneys. After intervention, each animal was randomized to a postoperative follow-up period of 1, 2, or 4 weeks, after which computed tomography perfusion and magnetic resonance imaging scans were performed. Immediately after imaging, open bilateral nephrectomy was performed allowing for histopathological examination of the cryolesions. On computed tomography perfusion and magnetic resonance imaging examinations, rim enhancement was observed in the transition zone of the cryolesion 1week after laparoscopic-assisted cryoablation. This rim enhancement was found to subside after 2 and 4 weeks of follow-up, which was consistent with the microscopic examinations revealing of fibrotic scar tissue formation in the peripheral zone of the cryolesion. On T2 magnetic resonance imaging sequences, a thin hypointense rim surrounded the cryolesion, separating it from the adjacent renal parenchyma. Microscopic examinations revealed hemorrhage and later hemosiderin located in the peripheral zone. No nodular or diffuse contrast enhancement was found in the central zone of the cryolesions at any follow-up stage on neither computed tomography perfusion nor magnetic resonance imaging. On microscopic examinations, the central zone was found to consist of coagulative necrosis 1 week after laparoscopic-assisted cryoablation, which was partially replaced by fibrotic scar tissue 4 weeks following laparoscopic-assisted cryoablation. Both computed tomography perfusion and magnetic resonance imaging found the renal collecting system to be involved at all 3 stages of follow-up, but on microscopic examination, the urothelium was found to be intact in all cases. In conclusion, cryoablation effectively destroyed renal parenchyma, leaving the urothelium intact. Both computed tomography perfusion and magnetic resonance imaging reflect the microscopic findings but with some differences, especially regarding the peripheral zone. Magnetic resonance imaging seems an attractive modality for early postoperative follow-up.

scholarly journals The challenge of neuroimaging during pregnancy

2019 ◽  
Vol 8 (11) ◽  
pp. 4376
Author(s):  
Kariman Suel Ghazal ◽  
Abdul Rahman Shatila
Keyword(s):  
Magnetic Resonance Imaging ◽  
Computed Tomography ◽  
Magnetic Resonance ◽  
Cerebral Edema ◽  
Neurological Disorders ◽  
Resonance Imaging ◽  
Female Reproduction ◽  
Cerebellar Hemorrhage ◽  
Neurologic Disorders

Background: Central nervous system conditions may affect every aspect of female reproduction from fertility to lactation. The objective of this study was to examine the performance of computed tomography and magnetic resonance imaging in the diagnosis of maternal neurologic disorders and to examine the outcome of pregnancies complicated by abnormal neurologic imaging.Methods: Retrospective observational study of 20 parturients presenting with severe neurologic symptoms (January 2006 to January 2016).Results: Abnormal neuro-radiological findings were found. Only 10% of the computed tomography-scans were normal. Both magnetic resonance imaging and computed tomography that were performed in all cases showed cerebral edema (90%) with different degrees, thereby cerebral edema was the predominant lesion. Pertaining to its localization, 65% were localized in the parietal or occipital area, 10% in the paraventricular area, and 10% were diffused. Also, 35% showed intracerebral hemorrhage and 10% showed cerebellar hemorrhage. The incidence of neurological disorders in pregnancy and puerperium was high. Epilepsy and headache were the most common primary and secondary neurological disorders.Conclusions: The role of neuroimaging in diagnosing neurological disorders is crucial for prevention of severe complications.

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