Abdominal imaging

Stark, David D.; Fahlvik, Anne K.; Klaveness, Jo

doi:10.1002/jmri.1880030140

Cited by 6 publications

(12 citation statements)

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“…Microbleeds were classified as lobar, deep, or infratentorial. Lobar MRI landmarks were defined according to Stark and Bradley 16 and included cortical and subcortical regions (including subcortical U fibres). Deep regions included the basal ganglia, thalamus, internal capsule, external capsule, corpus callosum, and deep and periventricular white matter.…”

Section: Methodsmentioning

confidence: 99%

Retinal vascular density as a potential biomarker of diabetic cerebral small vessel disease

Huang,

Wang,

Cai

et al. 2024

Diabetes Obesity Metabolism

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AimThe retina and brain share similar anatomical and physiological features. Thus, retinal imaging by optical coherence tomography angiography (OCTA) might be a potential tool for the early diagnosis of diabetic cerebral small vessel disease (CSVD). In this study, we aimed to evaluate retinal vascular density (VD) in diabetic CSVD by OCTA imaging and explore the associations between retinal VD and cerebral magnetic resonance imaging (MRI) markers and cognitive function.MethodsIn total, 131 patients were enrolled, including CSVD (n = 43) and non‐CSVD groups (n = 88). The VD and foveal avascular zone of the retinal capillary plexus were measured with OCTA. A brain MRI was performed.ResultsMRI imaging showed that in the diabetic CSVD group, white matter hyperintensities (WMHs), particularly deep WMHs (58.82%), are the most common MRI marker, followed by cerebral microbleeds in the subtentorial and cortical areas (34.78%). The CSVD group showed increases in the prevalence of cognitive dysfunction (p = .034) and depression (p = .033) and decreases in visuospatial/executive ability and delayed recall ability. In the CSVD group, VDs of the macular superficial vascular plexus (32.93 ± 7.15% vs. 36.97 ± 6.59%, p = .002), intermediate capillary plexus (20.87 ± 4.30% vs. 23.08 ± 4.30%, p = .005) and deep capillary plexus (23.54 ± 5.00% vs. 26.05 ± 4.20%, p = .003) were lower than those of the non‐CSVD group. Multiple linear regression analysis showed that VD of the macular superficial vascular plexus was independently associated with cerebral microbleeds. Meanwhile, VD of the macular intermediate capillary plexus was associated with white matter lacunar infarcts after adjustment.ConclusionsDiabetic CSVDs are characterized by MRI markers, including deep WMHs and cerebral microbleeds, and showed impaired cognition with decreased visuospatial/executive ability and delayed recall ability. OCTA imaging revealed a significant decrease in retinal microvascular perfusion in diabetic CSVD, which was related to MRI markers and cognitive function. OCTA might be a valuable potential measurement for the early diagnosis of CSVD.

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Section: Methodsmentioning

confidence: 99%

Retinal vascular density as a potential biomarker of diabetic cerebral small vessel disease

Huang,

Wang,

Cai

et al. 2024

Diabetes Obesity Metabolism

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“…Rarely, mucoceles are found in the ethmoid sinus. [1][2][3] Mucoceles form when the air in the sinus cavity decreases due to blocked ostium flow, usually involving one sinus, can also extend to adjacent and associated sinuses. 4,5 Large mucoceles can cause sinus volume to decrease and erode the orbital wall, causing proptosis, visual disturbances, diplopia, and facial asymmetry.…”

Section: Literature Reviewmentioning

confidence: 99%

“…1,2 Frontal sinus mucositis is generally expansile and rare, with incidence occurring at any age, but is most common in the third and fourth decades between the ages of 20-70 years where the ratio between men and women is equal. [1][2][3]6 Early symptoms of frontal sinus mucositis are usually characterized by headache, visual disturbances, facial pain, nasal discharge, proptosis, diplopia, exophthalmus, and epiphora. Expansion of the mucocele can cause sinus wall bulging and compression of the optic nerve.…”

Section: Literature Reviewmentioning

confidence: 99%

A case report of a mucocele

Pulungan

2023

JPMS

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Frontal sinus mucoceles can present with a multitude of symptoms including ophthalmic disturbances. In benign conditions, they tend to expand by eroding the surrounding bony walls that displace and destroy structures through pressure and bony resorption. It becomes inflamed and filled with pus (pyocele) or a combination of both (mucopyocele). Due to its expansile nature, mucocele is important for diagnosis. Frontal mucoceles are benign and curable. Early recognition and management are important, as they can cause local, orbital, or intracranial complications. The purpose of this paper is to report a case of mucocele and emphasize the importance of radiological imaging, especially CT-Scan and MRI, in supporting the diagnosis of frontal sinus mucocele, detecting invasive processes to surrounding tissues and their extension to the intraorbita/intracranial, planning before surgery/biopsy, and evaluating the results of therapy.

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“…Gadolinium chelates are widely used in clinical practice at the dose of 0.1 mmol/kg body weight. However, the rate of injection and the time delay between injection and scanning have not been standardized because little is known about enhancement parameters during MR examinations.The pharmacokinetics, biodistribution, and clinical indications of gadolinium chelates during MR examinations are similar to those of iodinated contrast agents used in computed tomography (CT) [5]. It has been shown in CT that differences in contrast enhancement between normal parenchyma and a lesion improve lesion conspicuity.…”

mentioning

confidence: 94%

“…The pharmacokinetics, biodistribution, and clinical indications of gadolinium chelates during MR examinations are similar to those of iodinated contrast agents used in computed tomography (CT) [5]. It has been shown in CT that differences in contrast enhancement between normal parenchyma and a lesion improve lesion conspicuity.…”

mentioning

confidence: 94%