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Turkish Journal of Medical Sciences

Journal

Magnetic resonance imaging

Articles 31 - 42 of 42

Full-Text Articles in Medicine and Health Sciences

Evaluation And Comparison Of Radiologic-Pathologic Findings In Invasive Cribriform Carcinoma Of The Breast, Pinar Balci, Işil Başara Akin, Nevi̇n Köremezli̇, Meri̇h Güray Durak, Canan Altay, Naci̇ye Si̇nem Gezer, Ali̇ İbrahi̇m Sevi̇nç Jan 2017

Evaluation And Comparison Of Radiologic-Pathologic Findings In Invasive Cribriform Carcinoma Of The Breast, Pinar Balci, Işil Başara Akin, Nevi̇n Köremezli̇, Meri̇h Güray Durak, Canan Altay, Naci̇ye Si̇nem Gezer, Ali̇ İbrahi̇m Sevi̇nç

Turkish Journal of Medical Sciences

Background/aim: This study aimed to report invasive cribriform carcinoma (ICC) with radiological and histopathologic correlations. Materials and methods: Seventy patients with ICC were classified into two groups; pure ICC patients and patients with >50% cribriform carcinoma component were included in group 1, while patients with <50% cribriform carcinoma component were included in group 2. All patients were reviewed according to American College of Radiology (ACR) breast imaging reporting and data system (BI-RADS) lexicon of mammography (MG), ultrasonography (US), and magnetic resonance imaging (MRI). One-way analysis of variance tests and t-tests were used for analysis. P < 0.05 was accepted as statistically significant. Results: Eighteen patients were in group 1 and 52 were in group 2. All patients had MG and US, while 24 patients needed MRI. According to MG ACR BI-RADS lexicon evaluation, irregular shape, spiculated margin and indistinct margin, and high density were statistically significantly higher in group 2 than the other group (respectively P = 0.001, P = 0.001, and P= 0.04). Equal density was statistically significantly higher in group 1 than the other group (P = 0.008). According to US ACR BI-RADS lexicon evaluation, irregular shape, spiculated margins, angular margins, microlobulated margins, and nonparallel orientation were more common US findings in group 2 than the other group (respectively P = 0.001, P = 0.001, P = 0.003, P = 0.04, and P = 0.04). The rate of parallel orientation was higher in group 1 than the other group (P = 0.02). Conclusion: Few cases showed benign characteristics and most ICCs appear with typical features of malignancy. Radiologic features of ICC could be better understood and would be helpful for radiologists in diagnosing this rare type of malignancy.


Cardiac Mri And 3d Contrast-Enhanced Mr Angiography In Pediatric And Young Adult Patients With Turner Syndrome, Hasan Yi̇ği̇t, Aşan Önder, Senem Özgür, Zehra Aycan, Selmi̇n Karademi̇r, Vehbi̇ Doğan Jan 2017

Cardiac Mri And 3d Contrast-Enhanced Mr Angiography In Pediatric And Young Adult Patients With Turner Syndrome, Hasan Yi̇ği̇t, Aşan Önder, Senem Özgür, Zehra Aycan, Selmi̇n Karademi̇r, Vehbi̇ Doğan

Turkish Journal of Medical Sciences

Background/aim: This study aimed to describe the spectrum and frequency of cardiovascular abnormalities in pediatric and young adult patients with Turner syndrome (TS) using cardiac MRI and MR angiography. Materials and methods: This prospective study consisted of 47 female patients of pediatric age and young adults with a karyotypically confirmed diagnosis of TS. All patients underwent cardiac MRI and contrast-enhanced MR angiography. A second examination after 9-26 months was performed for 28 of these patients. Results: Elongation of the transverse aortic arch (ETA) was the most frequent abnormality with a rate of 37%. The rate of partial anomalous pulmonary venous …


An Unusual Case Of Sclerosing Angiomatoid Nodular Transformation: Radiological And Histopathological Analyses, Meli̇ke Ruşen Meti̇n, Şehnaz Evri̇mler, Nurdan Çay, Hüseyi̇n Çeti̇n Jan 2014

An Unusual Case Of Sclerosing Angiomatoid Nodular Transformation: Radiological And Histopathological Analyses, Meli̇ke Ruşen Meti̇n, Şehnaz Evri̇mler, Nurdan Çay, Hüseyi̇n Çeti̇n

Turkish Journal of Medical Sciences

Sclerosing angiomatoid nodular transformation (SANT) is a rare benign primary vascular lesion of the spleen. Its etiology is still debated. Radiological characteristics are less known, although there are some reports regarding histopathological features of SANT. A 21-year-old male patient was admitted to our hospital with fatigue, weight loss, and abdominal pain for 4 months. Physical examination, complete blood count, and biochemical parameters were unremarkable. Dynamic contrast-enhanced computed tomography (CT) of the abdomen was performed. A heterogeneous well-defined hyperdense nodular lesion 3 cm in diameter was detected during the arterial phase. The detected lesion was seen as isodense with the spleen …


Determining Torsion Angle Of Humerus Head Using Mri Method, Ayfer Meti̇n Telli̇oğlu, Saci̇de Karakaş, Füsun Taşkin Jan 2014

Determining Torsion Angle Of Humerus Head Using Mri Method, Ayfer Meti̇n Telli̇oğlu, Saci̇de Karakaş, Füsun Taşkin

Turkish Journal of Medical Sciences

To measure the torsion angle of the humerus using images obtained via magnetic resonance imaging (MRI) in healthy volunteers and to evaluate outcomes with respect to sex and age groups. Materials and methods: The study consisted of 36 healthy adults (18 males and 18 females aged between 20 and 68 years). The humeral torsion angle (HTA) was calculated using axial MRI images. Differences between results in terms of sex and age groups were evaluated with the Mann-Whitney U test. Results: The median HTA was 21.5° (25th to 75th percentile: 7.8°-28°; range: -4° to 36°) in females, while it was 18.5° …


Comparison Of Disc And Body Volumes In Degenerated And Nondegenerated Lumbar Discs: A Stereological Study, Tuncay Kaner, Ahmet Songur, Muhsi̇n Toktaş, Ozan Alper Alkoç, Olcay Eser, Mustafa Efendi̇oğlu Jan 2014

Comparison Of Disc And Body Volumes In Degenerated And Nondegenerated Lumbar Discs: A Stereological Study, Tuncay Kaner, Ahmet Songur, Muhsi̇n Toktaş, Ozan Alper Alkoç, Olcay Eser, Mustafa Efendi̇oğlu

Turkish Journal of Medical Sciences

To carry out comparison and correlation analyses of the intervertebral disc (IVD) and vertebral body (VB) volumes in magnetic resonance (MR) images of patients with degenerated and nondegenerated lumbar discs. Materials and methods: MR images were examined retrospectively in 93 patients. Lumbar VB and IVD volumes in T1-T2 weighted sagittal MR images were calculated via the Cavalieri method, a stereological method. Volumetric changes in degenerated and nondegenerated discs were compared. Results: The percentages of degenerated IVDs were 12.9%, 12.9%, 28%, 50.5%, and 52% in discs from levels L1 to L5, respectively. There were no differences in VB volumes between the …


Sponge In The Belly; Postoperative Imaging Findings Of Oxidized Cellulose (Surgicel^®), Arzu Pampal, Gökçe Kaan Ataç, İbrahi̇m Onur Özen, Zeki̇ye Safi̇nur Keski̇n, Bi̇llur Demi̇roğullari, Sadi̇ Gündoğdu Jan 2013

Sponge In The Belly; Postoperative Imaging Findings Of Oxidized Cellulose (Surgicel^®), Arzu Pampal, Gökçe Kaan Ataç, İbrahi̇m Onur Özen, Zeki̇ye Safi̇nur Keski̇n, Bi̇llur Demi̇roğullari, Sadi̇ Gündoğdu

Turkish Journal of Medical Sciences

Surgicel is an absorbable material for local haemostasis. Its existence at surgical sites is troublesome since it interferes with the radiological images of postoperative complications. The aim of this study is to demonstrate the postoperative appearances of intraabdominal Surgicel. Materials and methods: Twelve guinea pigs were allocated to 2 groups. Animals with intraperitoneal (n = 6) and retroperitoneal (n = 6) Surgicel pieces were scanned postoperatively. Results: The density and intensity of Surgicel were compared with adjacent tissues. All retroperitoneal haemostats were hypointense compared to tissues next to them in T1W images but hyperintense compared to muscles, and 5 were …


Nitrous Oxide Anesthesia In Children For Mri: A Comparison With Isoflurane And Halothane, Mehmet Emi̇n Orhan, Ferruh Bi̇lgi̇n, Oğuz Kiliçkaya, Abdulkadi̇r Atim, Ercan Kurt Jan 2011

Nitrous Oxide Anesthesia In Children For Mri: A Comparison With Isoflurane And Halothane, Mehmet Emi̇n Orhan, Ferruh Bi̇lgi̇n, Oğuz Kiliçkaya, Abdulkadi̇r Atim, Ercan Kurt

Turkish Journal of Medical Sciences

To compare the anesthetic effects of nitrous oxide, isoflurane, and halothane on hemodynamic stability and recovery characteristics in pediatric patients during magnetic resonance imaging (MRI). Materials and methods: The present study includes 60 ASA I-II children aged 1-12 years undergoing MRI. After endotracheal intubation, patients were randomly assigned into 1 of 3 anesthetic groups. Group N (n = 20) received nitrous oxide and oxygen (N_2O:O_2 60:40), Group I (n = 20) received 0.5% isoflurane and oxygen, Group H (n = 20) received 0.5% halothane and oxygen to maintain anesthesia. At the completion of the procedure, inhalation anesthetic was discontinued. Extubation, …


The Comparison Of Mri Findings With Severity Score Of Incontinence After Pubovaginal Sling Surgery, Serdar Tarhan, Bi̇lali̇ Gümüş, Gökhan Temeltaş, Gülgün Yilmaz Ovali, Seli̇m Serter, Ci̇han Göktan Jan 2010

The Comparison Of Mri Findings With Severity Score Of Incontinence After Pubovaginal Sling Surgery, Serdar Tarhan, Bi̇lali̇ Gümüş, Gökhan Temeltaş, Gülgün Yilmaz Ovali, Seli̇m Serter, Ci̇han Göktan

Turkish Journal of Medical Sciences

To investigate the relationship between postoperative MRI findings and the severity score of incontinence in patients treated with pubovaginal sling surgery. Materials and methods: Fifty-two female patients treated with pubovaginal slings were included in the study. These patients' severity scores of incontinence were evaluated in the postoperative 6th month. All the patients were examined using MRI on the same day. A T2-weighted sagittal image of the midline structures, including the symphysis, urethra, and coccyx, was obtained at rest and at maximal strain. The mobility of the bladder floor and change in the posterior urethrovesical angle were calculated for each patient. …


The Role Of Magnetic Resonance Imaging In The Prediction Of The Neurodevelopmental Outcome Of Acute Bilirubin Encephalopathy In Newborns, Mustafa Mansur Tatli, Ahmet Karadağ, Ender Ödemi̇ş, Sümeyye Sarraoğlu, Mehmet Yörübulut Jan 2009

The Role Of Magnetic Resonance Imaging In The Prediction Of The Neurodevelopmental Outcome Of Acute Bilirubin Encephalopathy In Newborns, Mustafa Mansur Tatli, Ahmet Karadağ, Ender Ödemi̇ş, Sümeyye Sarraoğlu, Mehmet Yörübulut

Turkish Journal of Medical Sciences

Aim: Magnetic resonance imaging (MRI) is widely used in the diagnosis of acute bilirubin encephalopathy, but the relationship between MRI findings and neurodevelopmental outcome in newborns with acute bilirubin encephalopathy remains unclear. The aim of this study was to investigate the relationship between acute bilirubin encephalopathy, MRI findings, and neurodevelopmental outcome. Materials and Methods: The study included 13 infants with acute bilirubin encephalopathy. MRI was performed at 11-30 days of age. Infants were evaluated using the Denver Developmental Screening Test at 3 and 6 months of age. Results: Four of the 13 infants developed well. Five infants had abnormal MRI …


Measurement Of Cerebral And Cerebellar Volumes In Children With Fragile X Syndrome, Ni̇met Kabakuş, Mustafa Aydin, Ahmet Kavakli, Hanefi̇ Yildirim, Haluk Akin Jan 2006

Measurement Of Cerebral And Cerebellar Volumes In Children With Fragile X Syndrome, Ni̇met Kabakuş, Mustafa Aydin, Ahmet Kavakli, Hanefi̇ Yildirim, Haluk Akin

Turkish Journal of Medical Sciences

Background and Aim: Fragile X syndrome (FXS) is a genetic disease associated with mental retardation, speech and memory deficits, developmental/learning disabilities, and, frequently, also with neuropsychological findings. It is known that all these abnormal brain functions could be associated with morphological anomalies of various brain regions. We investigated possible brain volume variations in children with FXS who had significant neurobehavioral symptoms and cognitive deficits. Patients and Methods: This study was performed with 8 male FXS patients who were diagnosed cytogenetically. The Leiter International Performance Scales-Revised, the Stanford-Binet Intelligence Scale, the Vineland Social Maturity Scale, and DSM IV criteria were used …


Communicating Hydrocephalus In Systemic Lupus Erythematosus, Ramazan Albayrak, Sai̇t Albayram, Hakan Selçuk, Sebahatti̇n Sai̇p, Hali̇t Yilmaz, Ci̇van Işlak Jan 2006

Communicating Hydrocephalus In Systemic Lupus Erythematosus, Ramazan Albayrak, Sai̇t Albayram, Hakan Selçuk, Sebahatti̇n Sai̇p, Hali̇t Yilmaz, Ci̇van Işlak

Turkish Journal of Medical Sciences

Central nervous system (CNS) involvement has been recognized as the second leading cause of death in patients with systemic lupus erythematosus (SLE), although hydrocephalus is seen very rarely. We report a case of communicating hydrocephalus in a 24-year-old woman having previously diagnosed SLE without antiphospholipid antibody syndrome or cerebral venous angiographic abnormality. We propose direct damage-thrombosis of small sized venous structures or immune complex deposition within arachnoid villi, which impair cerebrospinal fluid flow, as a possible, yet unproven, pathophysiologic mechanism for hydrocephalus in SLE.


Results Of Acute Cerebral Anoxia In Adults: Is It A Reversal Sign?, Nai̇l Bulakbaşi, Yüksel Pabuşçu, H. Kemal Kurtaran, Cem Tayfun, Mustafa Taşar, Taner Üçöz Jan 2000

Results Of Acute Cerebral Anoxia In Adults: Is It A Reversal Sign?, Nai̇l Bulakbaşi, Yüksel Pabuşçu, H. Kemal Kurtaran, Cem Tayfun, Mustafa Taşar, Taner Üçöz

Turkish Journal of Medical Sciences

Objective: The aim of this study is to describe the results of acute cerebral anoxia in adults as a reversal sign. Methods: We retrospectively examined the CT and MR images of 9 patients in a vegetative state due to acute prolonged anoxia. Each of them had at least one MRI and 4 CT exams 6-12 hours, 10-14 days, 6-8 months and 1 year after the anoxic event. The degree of the cerebral atrophy and the mean density values of cerebral white matter were measured and calculated to demonstrate quantitative changes over time. Results: We detected a diffuse density decrease of …