3D Whole-Body MRI of the Musculoskeletal System

2021 ◽  
Vol 25 (03) ◽  
pp. 441-454
Author(s):  
Vassiliki Pasoglou ◽  
Sandy Van Nieuwenhove ◽  
Frank Peeters ◽  
Gaetan Duchêne ◽  
Thomas Kirchgesner ◽  
...  

AbstractWith its outstanding soft tissue contrast, spatial resolution, and multiplanar capacities, magnetic resonance imaging (MRI) has become a widely used technique. Whole-body MRI (WB-MRI) has been introduced among diagnostic methods for the staging and follow-up assessment in oncologic patients, and international guidelines recommend its use. In nononcologic applications, WB-MRI is as a promising imaging tool in inflammatory diseases, such as seronegative arthritis and inflammatory myopathies. Technological advances have facilitated the introduction of three-dimensional (3D) almost isotropic sequences in MRI examinations covering the whole body. The possibility to reformat 3D images in any plane with equal or almost equal resolution offers comprehensive understanding of the anatomy, easier disease detection and characterization, and finally contributes to correct treatment planning. This article illustrates the basic principles, advantages, and limitations of the 3D approach in WB-MRI examinations and provides a short review of the literature.

2008 ◽  
Vol 43 (11) ◽  
pp. 802-808 ◽  
Author(s):  
Fabian Springer ◽  
Petros Martirosian ◽  
Nina F. Schwenzer ◽  
Michael Szimtenings ◽  
Peter Kreisler ◽  
...  

2018 ◽  
Vol 22 (4) ◽  
pp. 737-742
Author(s):  
Т.М. Korol ◽  
V.P. Sorokoumov ◽  
D.О. Orlova

Inflammatory diseases, metrofibroma and endometriosis refer to gynecological diseases, most often causing female infertility. International statistics indicate that endometriosis affects from 5 to 50% of women and it ranks third among the most widespread gynecologic pathologies. Despite the centuries-old history of using diagnostic methods in medicine, it is one of the main unresolved problems of modern gynecology. It has been proven that endometriosis leads to a significant impairment of reproductive function, steady pain syndrome (71–87%) and infertility (21–47%). If over twenty years ago the above-mentioned disease was diagnosed at the age of about 40, then nowadays even a teenager may hear this diagnosis. The objective of this research is to analyze the basics of pathomorphology of genital endometriosis, as well as the principles of diagnosis, prevention and treatment that will help to combat the infertility. The analysis is based on the review of articles and research for 2010-2018, using the PubMed databases, eLIBRARY.RU, Web of Science. Endometriosis is a disease of the most active young women in the social life that may be of hereditary nature. When speaking about the mechanisms of disease progression, there are about 10 theories of its origin, and at the present time none of them explain the diversity of forms and types of this pathology. A distinction is made between genital endometriosis, developing in the genital area, and extragenital endometriosis, developing outside of it. The latter is less common (occurs in 6–8. %) in comparison with genital endometriosis (92–94. %). Genital endometriosis is divided into internal and external, their mechanisms of occurrence are slightly different. But the benign nature of formation is common to both of them. Morphological confirmation of the diagnosis is an important task, as far as endometriosis does not refer either to tumour pathology, or to inflammation, or to pathological regeneration. Accordingly, the treatment will be of a specific nature. This pathology manifests itself in a specific triad of symptoms: dysmenorrhea, dyspareunia and dyschezia. The “golden” standard for the disease diagnosis is a direct visualization of endometrioid heterotopias in the course of laparoscopy and histological examination of biopsy materials of endometriosis. In case of disease detection, the main therapeutic goals are the removal of foci of heterotopias, pain relief and restoration of reproductive function. The main objectives of prevention are strengthening of the immune system, prevention of frequent operations and interventions in pelvic organs, the correct approach to the use of oral contraceptives and women's awareness of the necessity of regular visits to gynecologists. So, a comprehensive approach to the study of pathomorphology and diagnosis of endometriosis allows to determine the expansion degree of heterotopias and to prescribe the correct treatment that will further improve the mental and social life of women and help in restoring the reproductive function.


2018 ◽  
Vol 5 (suppl_1) ◽  
pp. S692-S692
Author(s):  
Edwin Hayes ◽  
Lindsay Miranda ◽  
Anna-Kathryn Burch ◽  
Matthew Marcus ◽  
Helmut Albrecht ◽  
...  

Diagnostics ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 1053
Author(s):  
Davide Ippolito ◽  
Teresa Giandola ◽  
Cesare Maino ◽  
Davide Gandola ◽  
Maria Ragusi ◽  
...  

The aim of the study is to evaluate the effectiveness of short whole-body magnetic resonance imaging (WBMRI) protocols for the overall assessment of bone marrow involvement in patients with multiple myeloma (MM), in comparison with standard whole-body MRI protocol. Patients with biopsy-proven MM, who underwent a WBMRI with full-body coverage (from vertex to feet) were retrospectively enrolled. WBMRI images were independently evaluated by two expert radiologists, in terms of infiltration patterns (normal, focal, diffuse, and combined), according to location (the whole skeleton was divided into six anatomic districts: skull, spine, sternum and ribs, upper limbs, pelvis and proximal two-thirds of the femur, remaining parts of lower limbs) and lytic lesions number (<5, 5–20, and >20). The majority of patients showed focal and combined infiltration patterns with bone lesions predominantly distributed in the spine and pelvis. As skull and lower limbs are less frequently involved by focal bone lesions, excluding them from the standard MRI protocol allows to obtain a shorter protocol, maintaining a good diagnostic value.


2020 ◽  
Vol 34 (03) ◽  
pp. 145-151
Author(s):  
Shimpei Ono ◽  
Hiroyuki Ohi ◽  
Rei Ogawa

AbstractSince propeller flaps are elevated as island flaps and most often nourished by a single perforator nearby the defect, it is challenging to change the flap design intraoperatively when a reliable perforator cannot be found where expected to exist. Thus, accurate preoperative mapping of perforators is essential in the safe planning of propeller flaps. Various methods have been reported so far: (1) handheld acoustic Doppler sonography (ADS), (2) color duplex sonography (CDS), (3) perforator computed tomographic angiography (P-CTA), and (4) magnetic resonance angiography (MRA). To facilitate the preoperative perforator assessment, P-CTA is currently considered as the gold standard imaging tool in revealing the three-dimensional anatomical details of perforators precisely. Nevertheless, ADS remains the most widely used tool due to its low cost, faster learning, and ease of use despite an undesirable number of false-positive results. CDS can provide hemodynamic characteristics of the perforator and is a valid and safer alternative particularly in patients in whom ionizing radiation and/or contrast exposure should be limited. Although MRA is less accurate in detecting smaller perforators of caliber less than 1.0 mm and the intramuscular course of perforators at the present time, MRA is expected to improve in the future due to the recent developments in technology, making it as accurate as P-CTA. Moreover, it provides the advantage of being radiation-free with fewer contrast reactions.


Author(s):  
Valentina Angelini ◽  
Alberta Villanacci ◽  
Angelo Belotti ◽  
Francesca Castagnoli ◽  
Barbara Frittoli ◽  
...  

Abstract Background The purpose of this case report is to emphasize the importance of curing any clinical radiological elements in this historical period, especially in the area of endemic to coronavirus disease 19 (COVID-19) such as Lombardy and to stress the importance of the management of the asymptomatic patient, their crucial role in the spread of contagion. Case presentation We reported the case of incidental diagnosis of interstitial pneumonia by first finding on whole-body MR (WB-MR) in the patient affected by multiple myeloma (MM), with a negative respiratory symptoms at the time and with previous (1 month before) negative chest X-ray. The patient was promptly subjected to chest CT, which confirmed the suspicion of interstitial COVID-19 pneumonia and, in hospitalization, performed nasopharyngeal swabs for real-time polymerase chain reaction (RNA-PCR), with a doubtful outcome. Once the bacterial nature of the alterations was serologically and radiologically excluded, the patient was definitively diagnosed with COVID-19 and appropriately treated in hospitalization. Conclusion The clinical choices must, therefore, to make use of all the diagnostic tools available and full knowledge of the limitation of each of them.


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Kathrin Beyer ◽  
Stein Atle Lie ◽  
Bodil Bjørndal ◽  
Rolf K. Berge ◽  
Asbjørn Svardal ◽  
...  

AbstractRheumatoid arthritis (RA) and periodontitis are chronic inflammatory diseases with several pathogenic pathways in common. Evidence supports an association between the diseases, but the exact underlying mechanisms behind the connection are still under investigation. Lipid, fatty acid (FA) and metabolic profile alterations have been associated with several chronic inflammatory diseases, including RA and periodontitis. Mitochondria have a central role in regulating cellular bioenergetic and whole-body metabolic homeostasis, and mitochondrial dysfunction has been proposed as a possible link between the two disorders. The aim of this cross-sectional study was to explore whole-blood FA, serum lipid composition, and carnitine- and choline derivatives in 78 RA outpatients with different degrees of periodontal inflammation. The main findings were alterations in lipid, FA, and carnitine- and choline derivative profiles. More specifically, higher total FA and total cholesterol concentrations were found in active RA. Elevated phospholipid concentrations with concomitant lower choline, elevated medium-chain acylcarnitines (MC-AC), and decreased ratios of MC-AC and long-chain (LC)-AC were associated with prednisolone medication. This may indicate an altered mitochondrial function in relation to the increased inflammatory status in RA disease. Our findings may support the need for interdisciplinary collaboration within the field of medicine and dentistry in patient stratification to improve personalized treatment. Longitudinal studies should be conducted to further assess the potential impact of mitochondrial dysfunction on RA and periodontitis.


2019 ◽  
Vol 3 (11) ◽  
pp. 2151-2157
Author(s):  
Katherine I Wolf ◽  
Michelle F Jacobs ◽  
Rohit Mehra ◽  
Priya Begani ◽  
Matthew S Davenport ◽  
...  

Abstract At least 30% of all pheochromocytomas (PCCs)/paragangliomas (PGLs) arise in patients with a germline predisposition syndrome. Variants in succinate dehydrogenase subunits A, B, C, and D (SDHA, SDHB, SDHC, and SDHD) are the most common pathogenic germline alterations. Few pathogenic variants have been reported in succinate dehydrogenase assembly factor 2 (SDHAF2). Here, we describe a 30-year-old female patient who presented with a left-sided neck mass, which was later characterized as a carotid body PGL. Genetic testing revealed a likely pathogenic SDHAF2 variant (c.347G>A;p.W116X). Two sisters carried the same pathologic variant, and screening protocols were recommended. Whole-body MRI revealed thyroid nodules; this testing was followed by fine-needle aspiration, which confirmed papillary thyroid carcinoma in one sister and a follicular adenoma in the other. The two sisters then underwent hemithyroidectomy and total thyroidectomy, respectively. Because evidence for pathogenic variants in SDHAF2 causing predisposition to PCC/PGL is limited, we discuss the challenges in mutational variant interpretation and decision making regarding screening for associated tumors.


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