Search results for "contrast medium."
showing 10 items of 43 documents
Ossovenography and Epidural Venography
1976
Henning (1940) and Ehrhardt and Kneip (1943) were the first to report injection of contrast medium into bone. In 1952 Fischgold et al. reported that contrast injections into a human spinous process resulted in an outline of the venous plexus of the attached vertebral body. In subsequent years improvements have been made which now permit contrast visualization of the venous plexuses of the entire vertebral axis.
Segmentanatomie der Leber in der Computertomographie: Lokalisieren wir die Läsionen richtig?*
2000
Purpose: To evaluate if Couinaud's model using the planes of the major veins is an adequate tool for the presurgical localization of focal liver lesions. Methods: Biphasic helical CT scans were performed on patients evaluated for liver resection using an increased IV bolus of contrast medium (180 ml lopamidol) and 2 mm image reconstruction increments. During the first evaluation, all liver lesions were localized in the conventional way using the planes of the 3 major hepatic veins and the portal trunks as segmental boundaries. In a second review, all lesions were attributed to the nearest peripheral portal branches. The path and the segmental attribution of the portal branches were analysed…
Type 1A endoleak detachable coil embolization after endovascular aneurysm sealing: Case report
2021
Introduction Endovascular aneurysm sealing (EVAS) with the Nellix system was introduced to reduce endovascular aneurysm repair (EVAR) perioperative complications, especially endoleaks. Herein we report a case of successful type 1A endoleak managed with detachable coils embolization after EVAS. Presentation of case A 77-year-old male was referred for abdominal pain. The angio-CT scan confirmed the previous EVAS procedure and showed a type Is2 endoleak below the right renal artery resulting in a 2.5 cm aortic blister with contrast medium filling the space between the aortic wall and the endobags. The patient was considered unfit for conventional open surgery and an endovascular approach with …
Compatibility of irinotecan-loaded DC Bead with different volumes and types of non-ionic contrast media.
2015
Objectives Irinotecan-loaded microspheres are used for simultaneous embolisation and chemotherapy of liver metastases of colorectal carcinoma. The aim of the study was to evaluate the compatibility of recently introduced DC Bead M1 (bead size 70–150 µm) loaded with irinotecan after admixture with different types and volumes of non-ionic contrast media over a maximum period of 24 h and storage at room temperature. Methods Test suspensions were prepared by loading 2 mL DC Bead M1 with 100 mg irinotecan within 2 h. The loading efficiency was determined by measuring the concentrations of irinotecan in the excess solutions via a reversed phase high pressure liquid chromatography (RP-HPLC) assay …
The spectrum of risk factors for contrast induced nephropathy in patients undergoing coronary angiography or intervention
2014
Abstract Introduction Contrast induced nephropathy is an unfavorable acute event which can complicate the clinical course of patients undergoing coronary angiography. Clinical characteristics predisposing to its occurrence are still rather obscure. Methods We enrolled 591 patients (mean age 64.2 ± 10.98; 449 male and 142 female) who underwent emergency or elective Coronary angiography/Angioplastic in our Cardiologic Division between 10/2006 and 06/2008, paying attention to their Cardiovascular risk factors, dose and type of contrast medium, type and number of affected coronary arteries, pharmacological therapies, baseline renal function and extracoronary atherosclerosis. We performed a univ…
Iodide Mumps After Intravenous and Oral Administration of Contrast Medium
1996
A 70-year-old woman with a history of radical cystectomy and continent urinary diversion with a Mainz pouch I due to muscle invasive bladder carcinoma presented for a routine evaluation. Physical examination, electrocardiogram, chest x-ray and routine laboratory values showed no pathological findings. There was no history of salivary gland disease. Excretory urography was performed with 100 ml. nonionic contrast medium (iopromide) injected intravenously. Painless bilateral swelling of the submandibular glands developed 16 hours later without any dysphagia, dyspnea or other allergic reactions (see figure). After systemic treatment with an antihistamine and prednisolone the swelling resolved …
Darmkontrastierung bei der abdominellen Computertomographie: Wasser oder Kontrastmittel?
1991
The suitability of water as an oral or rectal contrast medium for abdominal CT was studied in 56 patients and compared with an iodine-containing water-soluble contrast medium (ioxital amino acid). In some cases it was impossible to differentiate gastrointestinal structures from extraluminal fluid collections (cystic tumours, ascites, abscesses) and there was poor filling of distal small bowel and colon. The routine use of water can, therefore, not be recommended. In some cases, however, water can result in improved image quality by reducing artifacts and improving the demonstration of the mucosa.
CT evaluation of the renal donor and recipient
2018
Proper pre- and post-transplant diagnostic imaging work-up is fundamental in ensuring a successful outcome for renal transplantation. Despite exposure to ionizing radiation, CT has high spatial resolution and is a widely available and fast imaging technique. CT is performed routinely to delineate the anatomy of the kidney, relevant vasculature, and urinary collecting system in the living donor, to assess the iliac vessels in potential recipients prior to surgery, and to assess early and late-term post-transplant complications. The purpose of this article is to outline the optimal CT protocol and the main reportable findings for both the donor and the recipient diagnostic imaging work-up as …
Ösophagusresektion bei unspezifischer Motilitätsstörung der Speiseröhre - Bedeutung der neuropathologischen Befunde
2005
A 47-year-old patient presented with a history of dysphagia for solid food for almost 10 years and weight loss of more than 50 kg. Non-resecting surgical as well as endoscopic procedures (laparoscopic cardiomyotomy with secondary antireflux operations, balloon dilation, Botulinum-toxin injection) were without success. A barium esophagogram showed a confinement of the distal esophagus with a filiform passage of the contrast medium and undigested food in the prestenotic dilated esophageal corpus. Manometry displayed a hypertensive lower esophageal sphincter with a resting pressure of 43.8 mmHg - although completely relaxing. The tubular esophagus was aperistaltic with 100 % simultaneous and r…
Artefaktreduzierung bei der Lungenemboliediagnostik mittels Spiral-CT unter Verwendung eines Kochsalzbolus
2001
nary Arteries Using a Saline Push. Purpose: To improve the diagnostic efficacy of bolus-enhanced spiral CT (SCT) in the detection of pulmonary embolism using a saline push immediately after bolus injection of the contrast medium. Patients and Methods: The study included 90 patients with suspected acute or chronic pulmonary embolism. The CT scan was performed in a caudocephaled direction. In Group I (n=60) we applied a bolus contrast injection (120 ml, 3 ml/s, 300 mg J/ml), after a median delay of 25 s. Group II (n = 30) had the same contrast injection which was immediately followed by an additional saline push (60 ml, 2 ml/s). Streak artifacts originating from high contrast concentrations i…