ABSTRACT
For the abdominal and pelvic CT Scan, the authors propose the filling of the bladder, the duodenal loop, the stomach and the rectum with a lipidic emulsion. The negative density of this emulsion allows a better visualization of the pancreas, the gastric wall and the bladder wall as well as the extension of pelvic and bowel tumors.
Subject(s)
Contrast Media , Tomography, X-Ray Computed/methods , Humans , Pelvis/diagnostic imaging , Radiography, AbdominalABSTRACT
The authors report a case of false aneurysm of the superior mesenteric artery, complicating acute pancreatitis. They insist on the sonographic signs of "the cyst within a cyst"; the presence of a cystic lesion located within a larger mass an US Scanning is highly suggestive of a false aneurysm included in a pseudocyst. They demonstrate the correlation between US Scanning, CT Scan and arteriogram.
Subject(s)
Aneurysm/complications , Mesenteric Arteries , Pancreatic Cyst/complications , Pancreatic Pseudocyst/complications , Aneurysm/diagnosis , Diagnosis, Differential , Humans , Male , Middle Aged , Pancreatic Pseudocyst/diagnosis , Tomography, X-Ray Computed , UltrasonographyABSTRACT
A patient presented an avulsion of left L5-S1 roots, with S1 meningocele, following a road accident. Saccoradiculography and CT scan imaging, even without contrast, allowed identification of total lesion in a suggestive clinical context. The characters of the CT scan images are emphasized. Images showed also the presence of pseudo-meningoceles and absence of roots.
Subject(s)
Lumbosacral Plexus/injuries , Myelography , Spinal Nerve Roots/injuries , Tomography, X-Ray Computed , Adult , Humans , Lumbosacral Plexus/diagnostic imaging , Male , Spinal Nerve Roots/diagnostic imagingABSTRACT
The authors report the progressive disappearing of the sonographical image of a previously visualized kidney in a case of emphysematous pyelonephritis. They have called the sonographic vanishing kidney "the sign of the Deaf Kidney". The non-visualisation of a kidney with advanced emphysematous pyelonephritis is due to the infiltration of the perirenal environment by a gas envelope and the filling of the excretory cavities by gas. The perirenal gas-bag forms a shield against ultrasonic waves. The sonographer must be aware of the eventuality of not being able to individualize a renal structure when wrapped in gas. He must then ask for a zonography of the renal area in order to confirm the gas-containing collection in the kidney.
Subject(s)
Emphysema/diagnosis , Pyelonephritis/diagnosis , Ultrasonography , Female , Humans , Middle AgedSubject(s)
Prostatic Neoplasms/pathology , Seminal Vesicles/pathology , Ultrasonography/methods , Humans , Male , Middle Aged , Pubic BoneABSTRACT
The authors describe an original application of real time transducers--initially intended for intracavitary sonography--in thoraco-abdominal scanning. The stic-form probe can be easily slipped under the patient. It is then possible to realize a scan with an upward beam. In the postero-anterior scan, the patient is placed in a supine position. He is motionless. We achieve a better visualization of the liquid collections, since their accumulation is declivious. The method allows a wider sonographic window for thoraco-abdominal and diaphragmatic investigation in sonography.
Subject(s)
Ascites/diagnosis , Pleural Effusion/diagnosis , Subphrenic Abscess/diagnosis , Ultrasonography/instrumentation , Humans , PostureABSTRACT
The transabdominal suprapubic study of the seminal vesicles was realised in 162 cases. Their relationship with the posterior bladder wall was examined. The normal distance between distal extremity of seminal vesicles-bladder wall measures 5 mm, and the distance between proximal extremity of seminal vesicles-bladder wall measures 7 mm. In case of benign hypertrophy, the seminal vesicles are pressed back and distance proximal extremity of seminal vesicles-bladder wall gets greater than 15 mm. In malignant hypertrophy of the posterior prostatic lobe, the position of the seminal vesicles does not change although the prostate has an increased volume.
Subject(s)
Prostatic Diseases/diagnosis , Seminal Vesicles/pathology , Ultrasonography , Adult , Humans , Male , Middle Aged , Prostatic Diseases/pathology , Prostatic Hyperplasia/diagnosis , Prostatic Neoplasms/diagnosisABSTRACT
Some patients, even subjects with normal weight, have a fatty tissue pad located behind the xyphoid appendix between the peritoneum, the liver and the abdominal wall muscles. The wall fatty pad is encapsulated. It is sonographically transsonic, but with high-level internal echoes, and may deform the anterior face of the liver. It can be from 8 to 13 cm wide, 5 to 10 cm high and 3 to 5 cm thick. This fatty structure may be mistaken for a parietal abscess or haematoma. The sonographical exploration of the abdominal wall with short-focussed high-frequency transducers and the knowledge of this normal variance of human anatomy should avoid such pitfalls.
Subject(s)
Abdominal Muscles , Adipose Tissue/anatomy & histology , Hematoma/diagnosis , Ultrasonography , Adult , Diagnostic Errors , Humans , MaleABSTRACT
The echographic rhythmic palpation (echosismography) is a new method which completes classical sonography. It studies the elastic behaviour of the tissues after their mechanical excitation which are analysed in the T.M. mode. When displayed in classical sonographic technique the lesion is located with calipers. Calipers allow the recognizing of the tumor level at any moment in time motion mode. Vibrations are then applied on the skin as near as possible to the lesion. A regular frequency of 1,5 impulsion per second at a constant pressure of 500 gr on 4 cm2 is used. The response of resonating tissues to vibratory excitation is recorded and characterized by the amplitude of the oscillations (sinusoïdal shape). Benign tumors always gave sinusoïdal type oscillations. Most of this kind of tumors were semi-liquid or solid. Malignant tumors gave typical flat curves in 84% cases. Some malignant tumors (16%) gave benign type sinusoïdal oscillations. They had a small size, less then 2 cm diameter. Some of them where to superficial so they had easily induced oscillations over the excitation level. Echosismography enables to improve the diagnosis when compared with classical sonography in about 20% of cases.
Subject(s)
Neoplasms/diagnosis , Ultrasonography , Diagnosis, Differential , Elasticity , Humans , Neoplasms/physiopathologyABSTRACT
A new intragalactophoric biopsy fitting is described, which consists of a modified dilator serving as curette and a needle-curette for aspiration. The new fitting has been used successfully and without complications in 26 cases. It has the advantage of providing larger specimens for cytological examination of ductal tumours of the breast.
Subject(s)
Biopsy, Needle/instrumentation , Breast/pathology , HumansABSTRACT
Since it can display the gastric folds, as well as the gastric wall and the exogastric area, sonography is a reliable way of diagnosing the giant hypertrophy of the gastric mucosa (Ménétrier's disease). The characteristic pastterns are: --a considerable thickening of the gastric folds and wall, --a high sonolucency, --the presence of the intra-mural cysts, --some "hilly" deformations in the exogastric part of the stomach, --occasionally, a mesenteric lipomatosis.
Subject(s)
Gastritis, Hypertrophic/diagnosis , Gastritis/diagnosis , Ultrasonography , Aged , Diagnosis, Differential , Humans , Male , Middle AgedABSTRACT
Concerning two cases of ascariasis and one case of distomiasis in the biliary ducts the authors describe the sonographic patterns leading to the ultrasonic diagnosis of those biliary parasites.--The "strip sign" characterizing ascaridiasis.--The "olympic ring gallbladder".
Subject(s)
Ascariasis/diagnosis , Biliary Tract Diseases/diagnosis , Trematode Infections/diagnosis , Ultrasonography , Acute Disease , Animals , Biliary Tract Diseases/etiology , Cholangiography , Cholelithiasis/diagnosis , Chronic Disease , Common Bile Duct/parasitology , Diagnosis, Differential , Gallbladder/parasitology , HumansABSTRACT
Proposal for preparing bubbly barium for double contrast gastric and duodenal examination. When releasing the carbone dioxide, this technique enables these organes to be inflated after induction of pharmacodynamic hypotonia.
Subject(s)
Barium , Carbon Dioxide , Contrast Media , Duodenum/diagnostic imaging , Stomach/diagnostic imaging , Humans , RadiographyABSTRACT
Ultrasonic visualization of normal and pathological Wirsung's ducts has become quite common, especially with the newest gray scale units. Ductal images were studied in 17 cases of quiescent chronic pancreatitis. Duct dilatation could be identified in the majority
