ABSTRACT
We examined 121 patients with solid hepatic masses and 62 healthy volunteers with Doppler ultrasonography. Blood flow in the main portal vein was identified as ante-or retrograde. Hepatofugal blood flow was detected in 3 patients with primary tumors and in 2 with hemangiomas. Arterio-portal fistula was diagnosed in all angiographic findings. In most cases of malignant tumors. Blood flow volume in the main portal vein was either normal or excessive. Our evidence may be instrumental in working out therapeutic strategies for hepatic tumors.
Subject(s)
Arteriovenous Fistula/diagnosis , Blood Flow Velocity , Liver Neoplasms/physiopathology , Portal Vein/physiopathology , Adult , Aged , Angiography , Arteriovenous Fistula/physiopathology , Female , Hepatic Artery/physiopathology , Humans , Male , Middle Aged , Portal System/physiopathologyABSTRACT
When the portal hypertension syndrome occurs, patients with liver cirrhosis develop three major collateral blood flow pathways. These are gastroesophageal, splenorenal, and paraumbilical ones along the recanalized umbilical veins. Only both the splenorenal pathway of blood return from the portal venous system, which considerably reduces portal blood flow volume and the paraumbilical one that increases portal blood flow are of hemodynamic significance.
Subject(s)
Hypertension, Portal/diagnosis , Portal Vein , Splenic Vein , Umbilical Veins , Adult , Collateral Circulation , Female , Hemodynamics , Humans , Hypertension, Portal/etiology , Hypertension, Portal/physiopathology , Liver Cirrhosis/complications , Liver Cirrhosis/physiopathology , Male , Middle Aged , Portal Vein/diagnostic imaging , Portal Vein/physiopathology , Portography , Regional Blood Flow , Splenic Vein/diagnostic imaging , Splenic Vein/physiopathology , Tomography, X-Ray Computed , Ultrasonography, Doppler, Duplex , Umbilical Veins/diagnostic imaging , Umbilical Veins/physiopathologyABSTRACT
Partial or complete obstruction was diagnosed by means of sonography with water filling (hydrosonography) in 48 patients with rectal or colonic cancer. The procedure appeared highly effective in detecting pathological lesions larger than 1.0 cm. It may be useful under urgent surgical conditions as a method of choice in diagnosing the nature of lesion, size, endophytic growth or grade of invasion. Hydrosonography using retrograde contrast filling may considerably enhance the potential of standard and transabdominal scanning.
Subject(s)
Colorectal Neoplasms/complications , Colorectal Neoplasms/diagnostic imaging , Intestinal Obstruction/diagnostic imaging , Intestinal Obstruction/etiology , Acute Disease , Aged , Diagnosis, Differential , Female , Humans , Male , Middle Aged , UltrasonographyABSTRACT
The results of ultrasound study were analyzed in 148 and 26 patients with acute small and intestinal obstruction, respectively, the causes of the latter included different diseases of the intestine and abdominal organs. The commonest ultrasound symptoms based on the diameter of the bowel, on the thickness and structure of the intestinal wall, on the status of mucosal motility folds of intestinal loops and on the pattern of motility were defined. They enable one to differentiate large and small intestinal obstruction and to define its degree with a high degree of validity. Abdominal ultrasonography used in the emergency surgical setting may rapidly solve problem in the diagnosis of abnormal changes, differential mechanical and functional ileus in most cases. Dynamic ultrasound monitoring allows the efficiency of the treatment performed to be evaluated.
Subject(s)
Colonic Diseases/diagnostic imaging , Intestinal Obstruction/diagnostic imaging , Rectal Diseases/diagnostic imaging , Acute Disease , Chronic Disease , Humans , UltrasonographyABSTRACT
The paper presents an original procedure for transabdominal ultrasound examination of the stomach and duodenum, which yields an objective piece of information on the status of all wall layers of the above organs. The procedure is rather easy-to-use, noninvasive, and well tolerable. Its efficiency is confirmed by the date of examination of 46 patients.
Subject(s)
Duodenum/diagnostic imaging , Stomach/diagnostic imaging , Ultrasonography/standards , Adolescent , Adult , Aged , Humans , Middle Aged , Sensitivity and SpecificityABSTRACT
Comprehensive x-ray endoscopic and morphologic examinations of 182 patients with chronic diffuse diseases of the liver were carried out to detect changes in gastroduodenal mucosa and the incidence of these changes in this patient population. Pathologic shifts were revealed in 132 patients (72.6%); various morphologic forms of chronic gastritis were found in 67 (39%), erosions in 41 (23%), gastroduodenal ulcers in 24 (13%) of these. The incidence of the detected changes was in direct correlation with the stage of the underlying disease.
Subject(s)
Endoscopy, Gastrointestinal , Gastric Mucosa/pathology , Gastritis/diagnosis , Intestinal Mucosa/pathology , Liver Diseases/diagnosis , Peptic Ulcer/diagnosis , Adult , Chronic Disease , Contrast Media , Female , Gastritis/etiology , Humans , Liver Diseases/complications , Male , Middle Aged , Peptic Ulcer/etiologyABSTRACT
Combined roentgenological and endoscopic investigation was used to study the state of the esophageal submucous veins. Echography was used for investigation of the gastric subserous veins and esophageal abdominal veins. The results obtained indicate that in the presence of portal hypertension there are two types of shunting: via the esophageal submucous (82%) and subserous (18%) veins. In patients with the predominant affection of the esophageal subserous veins x-ray investigation and endoscopy do not allow correct estimation of the presence and a degree of the gastroesophageal shunt. Echography results enable one to arrive at a correct conclusion in all patients.
Subject(s)
Collateral Circulation/physiology , Esophagus/blood supply , Liver Diseases/physiopathology , Stomach/blood supply , Veins , Adult , Chronic Disease , Humans , Male , Middle AgedABSTRACT
A study of 23 patients suffering tumor-associated acute obstruction of the large bowel made a case for application of primary double-contrast examination of the large intestine under artificial hypotension to establish relevant lesions, their site as well as the nature of obturation.
Subject(s)
Intestinal Neoplasms/complications , Intestinal Obstruction/diagnostic imaging , Intestine, Large/diagnostic imaging , Acute Disease , Aged , Barium Sulfate , Enema/methods , Female , Humans , Intestinal Neoplasms/diagnostic imaging , Intestinal Obstruction/etiology , Male , Middle Aged , Pneumoradiography/methodsABSTRACT
Great diagnostic value of the method of primary double contrast of the large bowel under conditions of its artificial hypotonia was shown on the basis of the examination of 30 patients with acute impassability of the large bowel.
Subject(s)
Colonic Diseases/diagnostic imaging , Intestinal Obstruction/diagnostic imaging , Acute Disease , Aged , Barium Sulfate , Diagnosis, Differential , Humans , Intussusception/diagnostic imaging , Male , Middle Aged , RadiographySubject(s)
Colonic Neoplasms/diagnostic imaging , Contrast Media/administration & dosage , Adult , Aged , Atropine/pharmacology , Barium Sulfate , Calcium Chloride/pharmacology , Colon/drug effects , Colonic Polyps/diagnostic imaging , Female , Humans , Male , Middle Aged , Pressure , Radiography , WaterSubject(s)
Esophageal Neoplasms/diagnostic imaging , Fluoroscopy/methods , Adult , Aged , Esophageal Neoplasms/radiotherapy , Female , Humans , Middle AgedABSTRACT
The authors considered 3 variants of radiation therapy of esophageal cancer using megavoltage radiation sources: standard methods including a continuous course, optimized planning including a continuous and split irradiation course. In the use of megavoltage sources and a continuous irradiation course the 5-year survival was 8.8%. The use of a split course in rational dosimetric planning made it possible to improve the 3-year survival up to 22.4% in a split course and up to 11.2% in a continuous course. The use of the optimum dosimetric planning made it possible while irradiationg esophageal cancer patients to reduce radiation exposure of the pulmonary tissue and to achieve a decrease of severe forms of radiation pneumonia.