PubMed Health⌕ Search

Biomedical subjects

L Incesu

Publications and source records attributed to L Incesu.

At least 19 recordsLinked to original sources
PubMed2004

A possible etiology of the internal derangement of the temporomandibular joint based on the MRI observations of the lateral pterygoid muscle.

The purpose of this study was to evaluate the relationship of the temporomandibular joint (TMJ) internal derangement and lateral pterygoid muscle (LPM) by magnetic resonance imaging (MRI). In this study, 115 subjects with TMJ internal derangement (total 230 TMJs) and 21 subjects without clinical symptoms (total 42 TMJs) were included. TMJ disc position and LPM were evaluated using MRI. LPM attachments were categorized into two different types: type 1, where fibers of the superior head of the LPM (SLPM) were attached to the disc and fibers of the inferior head of the LPM (ILPM) were attached to condyle, and type 2, where fibers of the SLPM were attached to the disc and condyle, and fibers of the ILPM were attached to condyle. The presence of muscle atrophy and degeneration were also evaluated. LPM attachments were observed in two different parts. Disc displacements were common in the muscle attachments of both types. Type 1 muscle attachments were seen in 85.9% of all the anterior disc displacement without reduction (ADD) TMJs (total 64 TMJs). Atrophy was seen in a higher proportion (43.7%) in TMJs with ADD (28/64) than in TMJs with normal and anterior disc displacement with reduction (ADDR). Out of 74 TMJs with atrophy, 68 had type 1 muscle attachment. Four TMJs had atrophy in both superior and inferior heads of the lateral pterygoid. However, atrophy was not present only in the ILPM. It has been concluded that since the SLPM only attached to the disc in type 1, the disc may displace anteriorly very easily. Therefore, this situation will reduce the function of the SLPM. Reduced muscle function may cause muscle atrophy. The activity of the SLPM may be more reduced since the disc permanently dislocated in TMJs with ADD. Finally, spasm of the LPM causes disc displacement and atrophy and then the degeneration of the LPM may follow disc displacement.

Adult↗
PubMed2004

Contrast-enhanced power Doppler US in the diagnosis of acute appendicitis.

INTRODUCTION/OBJECTIVE: To determine the value of power Doppler (PD) ultrasonography (US) and contrast-enhanced power Doppler (CEPD) US in the diagnosis of acute appendicitis and the prediction of histopathologic stages. METHODS AND MATERIAL: 50 patients with suspected acute appendicitis were evaluated by the same radiologist with PD US and CEPD US. Air micro bubbles stabilized by a granulate of "galactose and palmitic acid" were used as a contrast medium for sonography with the concentration of 400 mg/ml. PD US and CEPD US results were later correlated with the surgical and histopathologic findings. PD US and CEPD US findings were considered positive for appendicitis; if there was depiction of hyperemia in the wall of the appendix or if there was depiction of prominent peripheral vascularity when compared with normal soft tissues; and negative if both hyperemia and peripheral hyperemia were not prominent. RESULTS AND DISCUSSIONS: Of the 50 patients, 35 patients had histopathologically proven acute appendicitis. CEPD US showed prominent hyperemia in the appendiceal vessels or feeding vessels of the inflamed appendix, and resistance index (RI) calculations were easier. There was statistically significant difference between mean RI values of the normal appendix, suppurative appendicitis and gangrenous appendicitis. PD US has accuracy of 80%, sensitivity of 74% and CEPD US has 98%, and 100% in the diagnosis of acute appendicitis. CEPD US identified 100% of suppurative appendicitis and gangrenous appendicitis. CONCLUSION: CEPD US is a promising method in the diagnosis of acute appendicitis and determination of the inflammation stage.

Acute Disease↗
PubMed2004

Relationship of condylar position to disc position and morphology.

INTRODUCTION/OBJECTIVE: The purpose of this study was to assess whether condylar position, as depicted by magnetic resonance imaging, was an indicator of disc morphology and position. METHODS AND MATERIAL: One hundred and twenty two TMJs of 61 patients with temporomandibular joint disorder were examined. Condylar position, disc deformity and degree of anterior disc displacement were evaluated by using magnetic resonance imaging. RESULTS AND DISCUSSION: Posterior condyle position was found to be the main feature of temporomandibular joints with slight and moderate anterior disc displacement. No statistical significance was found between the condylar position, and reducing and nonreducing disc positions. On the other hand, superior disc position was found to be statistically significant for centric condylar position. CONCLUSION: It was concluded that posterior condyle position could indicate anterior disc displacement whereas there was no relation between the position of condyle and the disc deformity.

Cephalometry↗
PubMed2001

Acute interhemispheric subdural hematomas. Report of nine cases.

Nine male patients with acute interhemispheric subdural hematoma (ISH) are presented. The etiologic factor was trauma for all patients (traffic accident and falling down). The young adult cases and one child had bad prognosis due to severe clinical findings and high mortality. The asymptomatic patients were treated conservatively. In this report, we discussed etiologic factors, presentation of age groups, whether an ISH progresses to a chronic convexity subdural hematoma (SH), and real mortality rates for ISH with relevant literature knowledge. As a result, ISHs can present in all age groups including shaken babies, severely injured young adults as well as low velocity trauma striken elderly patients (especially those under anticoagulant medication). We believe that an acute ISH does not change to chronic convexity SH; in fact they present as simultaneous acute thin convexity SH and acute ISH. It is also concluded that in contrast to previous literature ISH and acute SH patients of similar neurological status have similar mortality rates.

Acute Disease↗
PubMed2000

Brachial plexus injury during subclavian vein catheterization for hemodialysis.

Although the subclavian vein is often used for placement of double-lumen hemodialysis catheters, the risk factors for complications for the patients with chronic renal failure are underestimated. We report a case of a patient with chronic renal failure in whom brachial plexus injury was caused by both a compressive hematoma and direct insertion of a needle resulting from a subclavian vein catheterization attempt for hemodialysis. This case emphasizes the need for determining the coagulation status of the patient especially with chronic renal failure before performing invasive procedures.

Adult↗
PubMed1999

The incidence of gallbladder stones and gallbladder function in beta-thalassemic children.

PURPOSE: To determine gallbladder motor function and gallstone prevalence in beta-thalassemic children. Abnormalities in gallbladder function or bile acid metabolism may contribute to gallstone formation in these patients. MATERIAL AND METHODS: In 17 beta-thalassemic patients and 12 normal healthy children with similar age, sex and weight, gallbladder size was measured using real-time US, and volume was calculated using the ellipsoid method. RESULTS: In the beta-thalassemic patients, cholelithiasis was present in 2 patients (11.8%). Sludge, which can be a predisposing factor for cholelithiasis and cholecystitis when it persists, was detected in 5 patients (29.4%). One of the patients had both cholelithiasis and sludge. Compared with the control group, beta-thalassemic children had larger fasting volume, residual volume, and smaller contraction index. CONCLUSION: Beta-thalassemic patients have enlarged gallbladders that retain an increased residual volume of bile. Gallbladder enlargement, bile stasis, and impaired emptying of sludge may be important events in the pathogenesis of pigment gallstones in beta-thalassemic patients.

Adolescent↗
PubMed1998

Are percutaneous transgastric biopsies using 14-, 16- and 18-G Tru-Cut needles safe? An experimental study in the rabbit.

We evaluated perforation, peritonitis and bleeding after 14-, 16-, 18-G Tru-Cut needles were passed through the stomach in an animal model. Insertions were performed on seven anaesthetized rabbits with 18-, 16- and 14-G needles simulating the clinical technique. Diluted contrast medium with methylene blue (60 mL) was administered through a nasogastric tube after the biopsy. Computed tomography (CT) scanning of the upper abdomen was performed 10 min after the insertion for leakage. The abdominal contents were inspected by laparotomy. There was no contrast medium leakage outside the gastrointestinal tract on CT images. Neither methylene blue nor other stomach content leakage was identified by laparotomy, even with manual squeezing. A tiny spot of blood was observed on the serosal surface of the stomach with the 18-G needle passes (five cases), whereas a relatively large haematoma was present with 14-G needle (four cases). Six of the rabbits survived and one died due to an inadvertant aortic injury. The results of the study show that transgastric route with an 18-G cutting needle can be used without fear of peritonitis and bleeding.

Animals↗
PubMed1998

Carpenter syndrome: report of two siblings.

Carpenter syndrome consists of acrocephaly, soft tissue syndactyly, short fingers, preaxial polydactyly, congenital heart disease, hypogenitalism, cryptorchidism, obesity, umbilical hernia and mental retardation. Here we report two affected sibs (IQs were 80 and 93) presenting various cerebrospinal malformations, i.e. frontal lobe deformity, narrowed foramen magnum, hypoplastic posterior fossa, kinked spinal cord, and syrinx cavitation demonstrated by magnetic resonance imaging.

Abnormalities, Multiple↗
PubMed1997

Acute appendicitis: MR imaging and sonographic correlation.

OBJECTIVE: Acute appendicitis is the most common indication for emergency abdominal surgery. To our knowledge, MR imaging has not been compared with sonography for revealing acute appendicitis. Our aim was to assess and compare the accuracy, advantages, and limitations of MR imaging and sonography in revealing appendicitis. SUBJECTS AND METHODS: The study included 60 consecutive patients suspected of having appendicitis who underwent abdominal sonography and MR imaging. Fat-suppressed T2-weighted fast spin-echo and gadolinium-enhanced fat-suppressed T1-weighted spin-echo axial and coronal images were obtained. The initial MR imaging and sonographic studies were later correlated with the surgical-pathologic findings, follow-up evaluations, and diagnosis at the time of discharge. RESULTS: Surgical, histopathologic, and follow-up results revealed that 34 patients had appendicitis. Of the 26 patients without appendicitis, 15 with symptoms of acute appendicitis had no pathologic diagnoses and the remaining 11 had another diagnosis. Comparison of the sensitivity, accuracy, and negative predictive values for MR imaging and sonography was found to be statistically significant (p < .05, chi-square test), indicating that MR imaging was superior to sonography in revealing appendicitis. We found no statistical difference in specificity and positive predictive value for MR imaging and sonography. CONCLUSION: Despite some disadvantages, we found MR imaging to be superior to sonography in revealing suspected acute appendicitis. MR imaging can be used after suboptimal or nondiagnostic sonography in cases of suspected acute appendicitis.

Acute Disease↗
PubMed1994

Neonatal cerebral candidiasis: CT findings and clinical correlation.

Lumbar puncture in a premature newborn undergoing therapy for sepsis revealed meningitis. Contrast-enhanced cranial tomography revealed multiple, homogeneously or ring-like enhanced lesions with peripheral edema. Cerebrospinal fluid culture showed growth of candida. Significant clinical recovery after Amphotericin-B treatment was noted. Follow-up CT examination showed regression of the lesions. Five months later no pathology was reported except small calcified granulomas and an area of encephalomalacia.

Amphotericin B↗
PubMedDate not supplied

Bilateral abdominoscrotal hydrocele.

Abdominoscrotal hydrocele is rare in children, especially in infants. The presented case is a 3.5-month-old baby with abdominoscrotal hydrocele. This is the first reported bilateral and the youngest case. Diagnostic work-up based on sonography established the diagnosis.

Abdomen↗
PubMedDate not supplied

MRI of the intracerebral lesions at 0.5 Tesla: comparison of fast spin-echo and conventional spin-echo sequences.

Fast spin-echo sequences was compared with conventional spin-echo sequences at 0.5 Tesla, in 130 patients who attended for routine brain MRI. Artefacts and contrast behaviour of anatomical structures and lesions were assessed visually and quantitatively by contrast-to-noise ratios. The difference between conventional spin-echo and fast spin-echo in contrast in intracerebral tumors and infarcts was not found to be significant statistically. Small amounts of haemosiderin and calcifications could not be seen on fast spin-echo images especially in T2 weighted. Flow artefacts were considerably reduced on fast spin-echo images. Motion artefact was considerably increased on dual-echo fast spin-echo sequences. There were no statistical differences between the results of the visual findings and between those of CNR values except for contrast between CSF and white matter and between haemoatoma and background in T2 sequences. Our results suggest that by virtue of the shorter acquisition time, diagnostic reliability and reduced flow artefact single-echo FSE sequences should be preferred to dual-echo CSE sequences in routine brain MRI at 0.5 Tesla.

Brain Diseases↗
PubMedDate not supplied

Magnetic resonance imaging of proximal aortopulmonary window.

Aortopulmonary window was prospectively diagnosed by magnetic resonance imaging in a 9-month-old boy. The diagnosis was confirmed by cardiac catheterization, angiocardiography, two-dimensional and color doppler echocardiography. Spin-echo T1-weighted axial and coronal magnetic resonance images show a large windowlike communication between left ascending aorta and right wall of the main pulmonary arterial trunk. To our knowledge, this is the first time that the diagnosis of the aorticopulmonary window was achieved by magnetic resonance imaging.

Angiography↗
PubMedDate not supplied

Extrapontine myelinolysis in a nine-year-old child.

Extrapontine myelinolysis in the pediatric age group is very rare. We report a nine-year-old girl with the classical clinical syndrome of pontine and extrapontine myelinolysis following liver trauma due to a traffic accident. She was referred to our hospital for further investigation of convulsions due to severe postoperative hyponatremia. She had no hypoxic event or other identifiable cause for the neurological symptoms. Neurological deterioration began about two days after correction of hyponatremia and followed a period of temporary improvement in hyponatremic encephalopathy. Diagnosis of extrapontine myelinolysis was confirmed with the identification of typical features on magnetic resonance imaging. The rapid correction of hyponatremia seemed the most likely cause since other biochemical tests including liver function tests were all within normal ranges. The long term clinical outcome was good. It is important to carefully monitor the rate of correction in electrolyte disturbances, and to consider the individual variation in response to therapy.

Accidents, Traffic↗