OBJECTIVE: To determine the role of ultrasound and magnetic resonance imaging (MRI) compared with conventional radiography in the detection of chronic and acute inflammatory manifestations of rheumatoid arthritis (RA) of the shoulder joint. METHODS: Forty-three consecutive patients with known RA prospectively underwent clinical examination, radiography, ultrasound, and MRI of the ...

We present a case of longstanding secondary subfertility caused by endometrial ossification. Of all diagnostic techniques performed, magnetic resonance imaging and hysterosalpingography did not detect the abnormality. Transvaginal ultrasound and computed tomography clearly showed the endometrial pathology. After successful operative hysteroscopy with removal of the osseous tissue, the patient became ...

RATIONALE AND OBJECTIVES: The workload in radiology departments is increasing rapidly. This study was designed to determine whether and to what extent the workload is being generated outside of traditional working hours (defined as 0800-1700 Monday thru Friday, excluding holidays). MATERIALS AND METHODS: Exam statistics were derived from the radiology ...

We report two patients with endometriosis of the rectovaginal septum in whom endovaginal ultrasound (US) and magnetic resonance imaging (MRI) played crucial roles in the diagnosis, staging, and follow-up of the disease. The specific features of endometriosis of the rectovaginal septum on MRI and transvaginal US enable a noninvasive diagnosis, ...

AIMS: To evaluate whether modern ultrasound examination helps to establish the diagnosis of head and neck venous vascular malformations (VVMs) and whether it can delineate their full extent. MATERIALS AND METHODS: Sonographic appearances of 30 head and neck VVMs were assessed for: location, extent, internal architecture, presence of flow and ...

OBJECTIVE: The objective of this study was to evaluate ultrasound as a diagnostic tool for investigating scapholunate and lunatotriquetral ligamentous and triangular fibrocartilage (TFC) tears. Ultrasound findings were compared to conventional arthrogram findings, as the reference gold standard. DESIGN AND PATIENTS: In total 26 patients, 17 males and 9 females ...

Live three-dimensional echocardiography (L3DE) is an important breakthrough in the field of medical ultrasound. It will provide a great potential tool for clinical diagnosis and treatment. In this article, the authors first review the bottlenecks in 3D cardiac imaging and the technical principles of L3DE that have been used to ...

OBJECTIVE: The objective of the present study was to determine the degree of difficulty in locating Implanon (Organon, Sydney, Australia) contraceptive rods which had been inserted suboptimally, using both ultrasound and magnetic resonance imaging (MRI). METHODS: Volunteers with correctly placed Implanon rods were recruited for normal scanning protocols. A phantom ...

The multiple-view focused assessment with sonography for trauma (FAST) exam is an integral tool in the assessment of blunt abdominal trauma. A prospective observational study was performed to compute the average minimum volume of detectable intraperitoneal fluid with the pelvic views of the FAST exam. All adult patients from October ...

BACKGROUND: The current recommendation to check the position of the Essure permanent birth control (PBC) micro-insert device after its insertion is by abdominal X-ray 3 months after insertion. We propose that ultrasound imaging is more suited for this purpose and gives reassurance much earlier. The sonographic appearance of the micro-inserts ...

A procedure for imaging the canine tympanic bulla, external ear canal and adjacent structures using currently available ultrasound equipment was established. Lateral and ventral transducer positions were identified for this purpose and a 6.5 MHz curvilinear transducer was considered to be optimal. The sonographic appearance of these structures in cadavers ...

This paper is devoted to the electroless plating of non-conductive substrates under ultrasound at 530 kHz. The ultrasonic irradiation is applied to the activation and to the plating steps. Effects are measured by following the final copper thickness obtained in 1 h of plating time, easily correlated to the average ...

Two cases of nonunion of the hook of the hamate were treated with low-intensity pulsed ultrasound. The patients were baseball players and had been injured as a result of hitting repeatedly. Nonunion was detected on computed tomography (CT) and was exposed to ultrasound for 20 min a day for 4 ...

We investigated 29 cases, diagnosed clinically as having Morton's neuroma, who had undergone MRI and ultrasound before a neurectomy. The accuracy with which pre-operative clinical assessment, ultrasound and MRI had correctly diagnosed the presence of a neuroma were compared with one another based on the histology and the clinical outcome. ...

We report the prenatal imaging findings of a rare case of cephalothoracopagus janiceps disymmetros diagnosed at 28 weeks' gestation. Two-dimensional ultrasound and magnetic resonance imaging demonstrated janiceps conjoined female twins with a single fused cranial vault, duplicated cerebra, two faces, four eyeballs, a fused thorax, two hearts, two thoracic spines, ...

OBJECTIVE: The diagnosis of anomalies of the corpus callosum (ACC) in foetuses with bilateral moderate ventriculomegaly (BMV) is difficult by means of ultrasound scan. The aim of this study was to examine the value of the additional investigation with magnetic resonance imaging (MRI) in foetuses with BMV and suspected ACC ...

Leiomyomas and adenomyosis are common benign myometrial conditions. Although their symptoms overlap, traditional treatment of these two entities differs; thus, making the correct diagnosis is critical. Specifically, uterine-conserving therapy is well established for many women with symptomatic leiomyomas, whereas hysterectomy is the treatment for debilitating adenomyosis. Magnetic resonance imaging (MRI) ...

BACKGROUND: The child with posterior plagiocephaly may have positional molding or unilateral lambdoid synostosis. Molding responds to conservative treatment, lambdoid synostosis requires surgical reconstruction. CT is diagnostic, but uses ionizing radiation, may need sedation, and the incidence of lambdoid fusion is only 2-3%. OBJECTIVE: The purpose of this prospective study ...

PURPOSE: Three-dimensional (3D) intraoperative ultrasound may be easier to interpret when used in combination with less noisy preoperative image data such as CT. The purpose of this study was to evaluate the use of preoperative image data in a 3D ultrasound-based navigation system specially designed for minimally invasive abdominal surgery. ...

OBJECTIVE: The purpose of this study was to determine the safety and efficacy of focused ultrasound surgery with magnetic resonance imaging guidance for the noninvasive treatment of uterine leiomyomas. STUDY DESIGN: Fifty-five women with clinically significant uterine leiomyomas were treated. Pain and complications were assessed prospectively, and posttreatment magnetic resonance ...

BACKGROUND: Dermoscopy, a noninvasive technique used to help physicians better visualize pigmented skin lesions, is becoming widely used by dermatologists. Yet despite its popularity, to our knowledge basic aspects such as the best immersion fluid (IF) to use and proper procedures for applying the IF and dermatoscope have never been ...

Normal reproduction requires healthy female anatomy. Cervical, uterine, tubal, ovarian, and peritoneal factors can coexist and cause female infertility. Ultrasound, hysterosalpingography, MR imaging, and fallopian tube catheterization are the radiologists' armamentarium for diagnosis. This article illustrates important findings in the infertile woman. An understanding of these entities helps i n ...

Modern ultrasound contrast media are gas-containing stabilized microbubbles that remain intact in the circulating blood for several minutes after intravenous injection and increase the intensity of the backscattered ultrasound. When the microbubbles disappear from the blood, they can be detected in the parenchyma of the liver and the spleen for ...

AIM: Ossa acromiale are rare anatomical conditions and have been evaluated with plain radiographs, CT- and MRI-scans, but not with ultrasound. The purpose of this study was to evaluate the appearance and the characteristics of os acromiale with ultrasound. METHODS: 25 patients with unilateral radiologically prediagnosed os acromiale had bilateral ...

OBJECTIVE: To evaluate a self teaching approach to be followed by a novice without previous practical experience in musculoskeletal ultrasonography. METHODS: The novice was given short general training (two hours) by an experienced sonographer focusing on the approach to the ultrasound equipment, and asked to obtain the best sonographic images ...

MRI-guided focused ultrasound was tested in the brains of rhesus monkeys. Locations up to 4.8 cm deep were targeted. Focal heating was observed in all cases with MRI-derived temperature imaging. Subthreshold heating was observed at the focus when the ultrasound beam was targeted with low power sonications, and in the ...

In the last decade, musculoskeletal imaging has rapidly expanded largely due to the imaging capabilities of magnetic resonance imaging and ultrasound. These modalities have increased the clinical understanding and mechanisms of arthritis and are assuming increasing importance in the diagnosis of arthritis; more recently, they have been used to monitor ...

We introduce a case of hysteroscopic adhesiolysis by the guidance of laparoscopic intracorporeal ultrasound (LIU) in a patient complaining of amenorrhea and infertility found to have total intrauterine synechia. Adequate intrauterine adhesiolysis was performed by resectoscope with a wire loop, coordinating images of the endometrial cavity, uterine wall and the ...

The clinically healthy testicles and epididymides of 31 rams were imaged inside and outside the breeding period, by using a real time ultrasound scanner. A scanning technique based on multiple imaging planes from the caudal and the lateral surface of the genitalia was employed. Optimum imaging was achieved by using ...

BACKGROUND: Magnetic resonance (MR) imaging of the neonate has been restricted by the need to transport the sick baby to the large magnetic resonance scanners and often the need for sedation or anaesthesia in order to obtain good quality images. Ultrasound is the reference standard for neonatal imaging. OBJECTIVE: To ...

Endometriosis is a common disorder of women of reproductive age, yet diagnosis of this condition is often problematic. The most frequent clinical presentations of endometriosis include dysmenorrhea, pelvic pain, dyspareunia, infertility, and pelvic mass. However, the correlation between these symptoms and the stage of endometriosis is poor. Currently available laboratory ...

Radiological features and biochemical changes were investigated during the parenchymal and ductal phases of chronic Fasciola hepatica infection in sheep. The activities of plasma aspartate aminotransferase (AST), lactate dehydrogenase (LDH) and gamma-glutamyl transpeptidase (GGT), plasma levels of IgG anti- F. hepatica and serial ultrasound, computed tomography (CT) and magnetic resonance ...

PURPOSE: A comparison of axial length estimates using applanation A-scan ultrasound and the Zeiss IOLMaster was conducted. The accuracy in predicting postoperative refraction determined by each method was also compared. METHODS: A cross-sectional study was performed on 51 eyes in 46 patients presenting to clinical practice for cataract surgery assessment. ...

BACKGROUND: Ultrasound imaging has been shown to be useful for the evaluation of systemic and localized scleroderma (LS). However, its specificity and sensitivity have not been studied. OBJECTIVES: To define morphological ultrasound diagnostic criteria in LS and to test their sensitivity and specificity with a 13-MHz ultrasound probe. METHODS: Forty ...

BACKGROUND: Although the association between unicornuate uterus and undescended ovaries is well established, little information is available on this entity, suggesting the possibility that many cases are not recognized at all. Consequently, important clinical information is missed in many patients worldwide. METHODS: During a period of 5 years, eight cases ...

AIMS: The aims of this study were to evaluate the role of spinal ultrasound in detecting occult spinal dysraphism (OSD) in neonates and infants, and to determine the degree of agreement between ultrasound and magnetic resonance imaging (MRI) findings. MATERIALS AND METHODS: Eighty-five consecutive infants had spinal ultrasound over 31 ...

The feasibility and safety of magnetic resonance (MR) imaging-guided focused ultrasound surgery for uterine leiomyomas is reported. Sequential sonications were delivered to nine targets. Temperature-sensitive phase-difference MR imaging monitored the location of the focus and measured tissue temperature elevations, ensuring therapeutic dose. MR images and hysterectomy specimens were evaluated. Six ...

Alzheimer's disease (AD) is one of the most devastating and cosily disorders affecting the aging population. Structural imaging (computed tomography [CT] and magnetic resonance imaging [MRI]) and functional imaging (single photon emission computed tomography [SPECT] and positron emission tomography [PET]) have been evaluated for their roles in the imaqinq diagnosis ...

This study compared a new disposable silicone eyecup for high-frequency ultrasound biomicroscopy to the standard hard plastic eyecup. The results showed the silicone eyecup attenuated leakage of the medium in which the probe was immersed, decreased scanning time, decreased distortion of the iris and angle during scanning, enhanced image quality, ...

OBJECTIVES: to evaluate if ultrasound contrast-agent infusion could improve duplex-ultrasound imaging of peripheral arterial disease (PAD) and increase the agreement with digital subtraction arteriography (DSA). DESIGN: prospective and consecutive study. MATERIAL: of 60 consecutive PAD patients, 15 were found to have an inconclusive duplex-ultrasound scan of the trifurcation and were ...

A three-dimensional (3D) representation of laparoscopic ultrasound examinations could be helpful in diagnostic and therapeutic laparoscopy, but has not yet been realised with flexible laparoscopic ultrasound probes. Therefore, an electromagnetic navigation system was integrated into the tip of a conventional laparoscopic ultrasound probe. Navigated 3D laparoscopic ultrasound was compared with ...

OBJECTIVE: A 7.5-MHz finger-grip probe was used to monitor intra-abdominal reproductive surgery in two groups of patients. STUDY DESIGN: The first group of patients underwent transabdominal myomectomy for multiple uterine leiomyomas (n = 3) and the second group underwent uterine reconstruction and excision of obstructive uterine horn (n = 3). ...

A high intensity focused ultrasound (HIFU) device was developed for treating uterine fibroid tumors. This prototype device enables image-guided therapy by aligning a commercially available abdominal ultrasound image probe to a vaginal HIFU transducer so the HIFU focus is in the image plane. The device was designed based on anatomical ...

This review gives a summary on current ultrasound contrast agents and their composition. Methods of brain imaging using UCA, like harmonic imaging and acoustic emission, are also described. Besides contrast-enhanced conventional color duplexsonography of the extracranial brain supplying arteries, transcranial contrast investigation of the basal cerebral arteries and visualization of ...

The work has been presented at The Association for Research in Vision and Ophthalmology (ARVO) Annual Meeting, Fort Lauterdale, Florida, May 1999. PURPOSE: To evaluate inter- and intraobserver variability of the R/D score in assessing the iris configuration in Pigment Dispersion Syndrome patients. METHODS: Fifty-seven high-resolution ultrasound biomicroscopy images were ...

Ultrasound is a rapid, widely available and inexpensive imaging modality for the evaluation of the ankle and hindfoot. Ultrasonography can be performed in acute, semiacute and chronic conditions. Ankle injuries can be evaluated with ultrasound combined with X-rays. In the emergency room, acute trauma of ankle and hindfoot is an ...

Intraperitoneal port catheter systems for local delivery of cytotoxic drugs require imaging prior to chemotherapy to confirm homogenous distribution of an injected fluid in the entire peritoneal cavity. This study was performed to assess whether contrast-enhanced ultrasound (US) is a suitable imaging modality for this task. Twelve patients with peritoneal ...

In patients affected with insulinomas the preoperative work-up is debated. The success rate of various localisation procedures seems considerably inferior in respect to intraoperative results. Aim of the study is to evaluate our personal experience with this dichotomy. Twenty nine patients with definitive diagnoses of primary hyperinsulinemia from 1985 until ...

Our objective was to determine the clinical importance of reinterpretation of radiological investigations performed in a referring hospital and the value of additional investigations in a referral centre. A panel of four experts retrospectively evaluated the technical quality of radiological investigations and made reinterpretation reports, of 78 patients referred with ...

AIM: The aim of this study was to assess the added value of computed tomography (CT) with ultrasound in identifying unresectable or incurable gastric cancer. METHODS: One hundred and eighteen patients with various types of gastric cancer were preoperatively staged with ultrasound and CT between January 1999 and October 2000. ...