Aydin Karabacakoglu

Selcuk University, Konya, Konya, Turkey

Are you Aydin Karabacakoglu?

Claim your profile

Publications (28)

  • Khalil Awadh Murshed · Aynur Emine Ciçekcibaşi · Aydin Karabacakoğlu · [...] · Taner Ziylan
    Dataset · Jan 2015
  • R Haykir · S Karakose · A Karabacakoglu
    [Show abstract] [Hide abstract] ABSTRACT: Elastofibroma dorsi is a rare benign and slow-growing fibro-proliferative lesion. It has a characteristic location (periscapular region) and a specific imaging appearance (sonography, CT, MRI) allowing accurate prospective diagnosis. The recognition of this benign lesion avoids unnecessary biopsy and/or surgery. We report two cases of bilateral elastofibroma dorsi illustrating characteristic imaging features on ultrasound, CT and MRI.
    Article · Nov 2007 · Australasian Radiology
  • Aydin Karabacakoğlu · Yüksel Adigüzel · Serdar Karaköse · [...] · Rahime Haykir
    [Show abstract] [Hide abstract] ABSTRACT: We evaluated the characterization and detection of liver lesions using mangafodipir trisodium. A total of 51 patients with liver lesions [13 hepatocellular carcinomas, 18 metastases, 14 hemangiomas, three cholangiocellular carcinomas, two hydatic cysts, and one focal nodular hyperplasia (FNH)] were examined by unenhanced and mangafodipir trisodium-enhanced MRI. After administration of mangafodipir trisodium by slow intravenous infusion, mangafodipir trisodium-enhanced MRI was performed at 15-30 min and 24 h. The enhancement appeared in normal liver parenchyma and all of the hepatocellular lesions (HCCs and FNH). The lesions in hepatocellular carcinomas patients showed a non-homogeneous enhancement pattern. Non-hepatocellular lesions (hemangiomas, metastases, CCCs) had no enhancement on mangafodipir trisodium-enhanced MRI examinations. The rim-like enhancement pattern was demonstrated in all patients with cholangiocellular carcinomas, and in 14 metastases and 11 hemangiomas. Mangafodipir trisodium-enhanced MRI permits reliable distinction between hepatocellular and non-hepatocellular tumors. Mangafodipir trisodium-enhanced MRI can show more functional and morphologic features of hepatocellular lesions. Some non-hepatocellular lesions which went undetected on unenhanced MRI were visualized after contrast enhancement of the liver. The rim-like enhancement pattern is not specific for metastases. Mangafodipir trisodium-enhanced MRI is safe and well tolerated and may aid in noninvasive diagnosis of liver lesions.
    Article · Oct 2006 · The Turkish journal of gastroenterology: the official journal of Turkish Society of Gastroenterology
  • Rahime Haykir · Serdar Karaköse · Aydin Karabacakoğlu · [...] · Mustafa Sahin
    [Show abstract] [Hide abstract] ABSTRACT: Magnetic resonance colonography based on magnetic resonance imaging is a relatively new diagnostic modality for diagnosing colon pathology. The aim of this study was to evaluate its performance in detecting colorectal masses. Thirty-three patients (20 male, 13 female; age range 28-85 years; mean age 78.7) suspected of having colonic lesions because of rectal bleeding, positive fecal occult blood test results or altered bowel habits underwent magnetic resonance colonography and subsequent conventional colonoscopy. All patients underwent standard bowel preparation 24 h before magnetic resonance colonography. Patients were placed in a supine position on the magnetic resonance table. After placement of a rectal tube, the colon was filled with of a mixture of 1000-1800 ml 0.9% NaCl solution and 15-20 ml 0.5 mmol/L gadopentetate dimeglumine solution. Once colonic distension was achieved, 3D GRE magnetic resonance colonography and complementary Magnetic resonance images were taken in all cases. Sensitivity of magnetic resonance colonography for colorectal masses was 90% and specificity was 100%. Percentage of correct diagnosis of magnetic resonance colonography was 94.3%. Magnetic resonance colonography was well tolerated without sedation or analgesia. Magnetic resonance colonography is a new technique for imaging of the colon. Magnetic resonance colonography has potential advantages of multiplanar capabilities and of being a less-invasive imaging technique; it can be implemented in daily practice and has a role in accurately staging colorectal cancers. In symptomatic patients, this new technique shows promising results for the detection and imaging of colorectal masses.
    Article · Oct 2006 · The Turkish journal of gastroenterology: the official journal of Turkish Society of Gastroenterology
  • A Alper Pampu · Doğan Dolanmaz · Hakan H Tüz · Aydin Karabacakoglu
    [Show abstract] [Hide abstract] ABSTRACT: The aim of this study was to evaluate the effects of systemically administered zoledronic acid (ZA) on the bone mineral density (BMD) and bone mineral content (BMC) at mandibular distraction sites in rabbits. Eighteen New Zealand white rabbits were randomly divided into 2 groups. Bone lengthening was performed in the left portion of the mandible through distraction osteogenesis at a rate of 0.5 mm every 12 hours for 5 days. While the experimental group rabbits were administered intravenous 0.1 mg/kg ZA, control group rabbits were given only saline infusion during operation. All animals were sacrificed at the end of the consolidation period of 28 days. The mandibles of all animals were removed and both the anterior and posterior pin regions of the regenerate and regenerate region were evaluated by dual energy x-ray absorptiometry (DEXA). BMD and BMC data were statistically analyzed. Except for 1 rabbit from the experimental group that had an infection at the external pin region, all animals showed complete clinical healing. When the values in the group receiving ZA were compared with those of the control group, it was observed that the BMD values of the anterior pin region of regenerate, regenerate region, and posterior pin region increased by 23%, 20%, and 31%, respectively; and BMC values increased by 22%, 24%, and 32%, respectively. When data of these regions were compared, both BMD and BMC were found statistically different in all regions (P < .05). Results of this study showed that ZA had positive effects on new bone formation at and around the distraction gaps of the lengthened rabbit mandibles by distraction osteogenesis.
    Article · Aug 2006 · Journal of Oral and Maxillofacial Surgery
  • Source
    Rahime Haykir · Serdar Karakose · Aydin Karabacakoglu · [...] · Ertugrul Kayacetin
    [Show abstract] [Hide abstract] ABSTRACT: To evaluate the sensitivity and specificity of MR colonography (MRC) and CT performance in detecting colon lesions, and to compare their sensitivity and specificity with that of conventional colonoscopy. Forty-two patients suspected of having colonic lesions, because of rectal bleeding, positive fecal occult blood test results or altered bowel habits, underwent the examinations. After insertion of a rectal tube, the colon was filled with 1000-1500 mL of a mixture of 9 g/L NaCl solution, 15-20 mL of 0.5 mmol/L gadopentetate dimeglumine and 100 mL of iodinized contrast material. Once colonic distension was achieved, three-dimensional gradient-echo (3D-GRE) sequences for MR colonography and complementary MR images were taken in all cases. Immediately after MR colonography, abdominal CT images were taken by spiral CT in the axial and supine position. Then all patients were examined by conventional colonoscopy (CC). The sensitivity and specificity of MRC for colon pathologies were 96.4% and 100%, respectively. The percentage of correct diagnosis by MRC was 97.6%. The sensitivity and specificity of CT for colon pathologies were 92.8%, 100%, respectively. The percentage of correct diagnosis by CT was 95.2%. In detecting colon lesions, MRC achieved a diagnostic accuracy similar to CC. However, MRC is minimally invasive, with no need for sedation or analgesics during investigation. There is a lower percentage of perforation risk, and all colon segments can be evaluated due to multi-sectional imaging availability; intramural, extra-intestinal components of colonic lesions, metastasis and any additional lesions can be evaluated easily. MRC and CT colonography are new radiological techniques that promise to be highly sensitive in the detection of colorectal mass and inflammatory bowel lesions.
    Full-text Article · May 2006 · World Journal of Gastroenterology
  • Gul Eser · Aydin Karabacakoglu · Serdar Karakose · [...] · Ertugrul Kayacetin
    [Show abstract] [Hide abstract] ABSTRACT: To investigate the role of mangafodipir trisodium (MnDPDP) in focal pancreatic masses and mass-like lesions by evaluating contrast uptake features of the lesions and pancreatic parenchyma after contrast medium injection. A total of 37 patients with pancreatic mass or mass-like lesions were examined by unenhanced and MnDPDP-enhanced magnetic resonance imaging (MRI). MRI was obtained 20-40 min after infusion of MnDPDP and homogeneous contrast enhancement was observed in normal pancreas parenchyma. In patients with atrophic pancreas there was no enhancement in pancreatic parenchyma on MnDPDP-enhanced MRI. In 37 patients with 41 pancreatic masses and mass-like lesions, contrast enhancement was observed at 5 lesions on MnDPDP enhanced MRI. Three of these 5 lesions were focal pancreatitis and the other 2 were adenocarcinoma. No contrast enhancement was determined in 36 pancreatic masses and mass-like lesions in 32 patients. MnDPDP contrast-enhanced MRI, especially in cases with no parenchyma atrophy, can distinguish focal pancreatic lesion margins. Information about the function of pancreatic parenchyma can be obtained out of tumor. MnDPDP facilitates staging of pancreatic tumors by detection of metastatic lesions in the liver. In addition, diminished heteregenous uptake of MnDPDP in patients with pancreatitis may be helpful in differential diagnosis.
    Article · Apr 2006 · World Journal of Gastroenterology
  • Article · Dec 2005 · International Journal of Oral and Maxillofacial Surgery
  • [Show abstract] [Hide abstract] ABSTRACT: Spontaneous rupture of choledochal cysts is one of the rare complications, and can sometimes be the initial manifestation. It should be considered in the presence of bile-like fluid. A 10-year-old girl had acute onset of abdominal pain, vomiting, and elevated bilirubin, alkaline phosphatase, glutamic oxaloacetic transaminase and glutamic-pyruvic transaminase levels. There was no trauma in her history. In ultrasonography and computed tomography, dilated common bile duct, cystic mass of 10 x 6 cm, and free intraperitoneal fluid in abdominal cavity were demonstrated. Radiological methods, especially intraoperative cholangiography, should be performed for evaluation. We report a case of spontaneous rupture of the choledochal cyst with clinical and radiological findings.
    Article · Jul 2005 · The Turkish journal of pediatrics
  • Source
    Khalil Awadh Murshed · Aynur Emine Ciçekcibaşi · Aydin Karabacakoğlu · [...] · Taner Ziylan
    [Show abstract] [Hide abstract] ABSTRACT: Among the anthropometric factors to be considered, anatomic differences in the distal femur and intercondylar notch have been implicated as a cause of the different rates of anterior cruciate ligament (ACL) rupture between men and women; therefore, in this study our aim was to evaluate a number of morphometric measurements in the distal part of the femur. Two hundred knee MRI examinations were analyzed: 56 male right, 44 male left, 42 female right and 58 female left. Measurements of the intercondylar height (ICH), intercondylar width (ICW), medial condylar width (MCW), lateral condylar width (LCW) and epicondylar width (EW) were obtained. The notch shape index (NSI) was also calculated. Statistical analysis for comparisons was done by Student's t-test. Correlations between the parameters studied were calculated by Pearson correlation coefficients. Significant bilateral differences were not found (p > 0.05). In all measurements, males showed significantly greater values than females (p < 0.001). No difference was seen in the NSI between males and females (p > 0.05). Conversely a significant association was obtained between age and all parameters. We conclude that the results of this study may be useful for anatomic evaluation of the distal femur region prior to orthopaedic operations.
    Full-text Article · May 2005 · Surgical and Radiologic Anatomy
  • Aydin Karabacakoglu · Serdar Karakose · Ozlem Ince · [...] · Giray Karalezli
    [Show abstract] [Hide abstract] ABSTRACT: Ultrasonography and conventional intravenous urography are most common methods in diagnosis of obstructive uropathies. The disadvantage of ultrasonography is inability of visualizing middle and lower one thirds of ureter, while intravenous urography is using radiation, also functionally extra loading effect on kidneys. In this study, the diagnostic value of MR urography on obstructive uropathy were investigated. Forty five patients who were suffered from obstructive uropathy examined by ultrasonography, intravenous urography and diuretic-enhanced excretory MR urography by using MR-contrast-agent. MR urography established accuracy rate of 92.8% for stone diseases which formed the largest group in this study, however, in other causes of obstructive uropathy, MR urography provide 100% correct diagnosis. MR urography provide high quality images for diagnosing and determining causes of urinary obstruction defining position and severity of dilatations as well as showing localization of the pathology. We think that MR urography should be a primary investigation in patients with obstructive uropathy who have contrast agent and X-ray contrindication.
    Article · Jan 2005 · European Journal of Radiology
  • Source
    Khalil Awadh Murshed · Aynur Emine Çiçekcibaşi · Aydın Karabacakoğlu · [...] · Taner Ziylan
    [Show abstract] [Hide abstract] ABSTRACT: Among the anthropometric factors to be considered , anatomic differences in the distal femur and intercondylar notch have been implicated as a cause of the different rates of anterior cruciate ligament (ACL) rupture between men and women; therefore, in this study our aim was to evaluate a number of morpho-metric measurements in the distal part of the femur. Two hundred knee MRI examinations were analyzed: 56 male right, 44 male left, 42 female right and 58 female left. Measurements of the intercondylar height (ICH), intercondylar width (ICW), medial condylar width (MCW), lateral condylar width (LCW) and epicondylar width (EW) were obtained. The notch shape index (NSI) was also calculated. Statistical analysis for comparisons was done by Student's t-test. Correlations between the parameters studied were calculated by Pearson correlation coefficients. Significant bilateral differences were not found (p>0.05). In all measurements, males showed significantly greater values than females (p<0.001). No difference was seen in the NSI between males and females (p>0.05). Conversely a significant association was obtained between age and all parameters. We conclude that the results of this study may be useful for anatomic evaluation of the distal femur region prior to orthopaedic operations.
    Full-text Article · Jan 2005 · Surgical and Radiologic Anatomy
  • Ertugrul Kayacetin · Serdar Karakose · Aydin Karabacakoglu · Dilek Emlik
    [Show abstract] [Hide abstract] ABSTRACT: Chronic mesenteric ischemia is an uncommon condition associated with a high morbidity and mortality. We reported a 36-year old women with postprandial abdominal pain due to chronic mesenteric ischemia caused by a fistula between superior mesenteric and common hepatic artery.
    Article · Oct 2004 · World Journal of Gastroenterology
  • Hatice Savaş · Aydin Karabacakoğlu · Serdar Karaköse · Ercan Durmuş
    [Show abstract] [Hide abstract] ABSTRACT: Neurofibromatosis type 1 is the most common autosomal dominant disorder of the nerve sheath and best defined phakomatosis. It usually affects skeletal system, central nervous system, eye, endocrine gland and cardiovascular system. Gingival involvement is very rare. We report radiological findings of three patients with plexiform neurofibroma who had diffuse, unilateral gingival involvement.
    Article · Apr 2004 · Tanısal ve girişimsel radyoloji: Tıbbi Görüntüleme ve Girişimsel Radyoloji Derneği yayın organı
  • [Show abstract] [Hide abstract] ABSTRACT: To determine the role of hyperoxic and hyperbaric therapy following experimental subarachnoid hemorrhage (SAH). Prospective, randomized, controlled animal study. Thirty male Wistar rats. Thirty rats were assessed for an initial neurologic status as double-blinded by two different neurosurgeons using a neurologic severity score (NSS) and then underwent an initial angiographic examination. Two days later, 0.3 ml of homologous blood was injected into the cisterna magna to produce a SAH-induced cerebral vasospasm. The NSS and angiographic examination were then repeated. The rats having no spasm or a spasm under 50% (n=8) and 50% or over 50% (n=22) were grouped separately, as groups 1 and 2, respectively. The rats having 50% or more spasm were further divided randomly into group 2A and 2B. The rats in groups 1 and 2A (n=11) underwent a 60-min course of 100% oxygen at the atmospheric pressure 1 atmosphere absolute (ata), and group 2B (n=11) received 100% oxygen at 3 ata for 1 h. Neurologic assessment was repeated on the next day and 7 days later. The animals having no spasm or less than 50% spasm had a better NSS and outcome when compared with the animals having 50% or more spasm. But the animals with 50% or more spasm which underwent hyperbaric therapy were shown to have a better outcome compared to the animals having hyperoxic therapy. Exposure to hyperbaric oxygen therapy seemed to accelerate the recovery of neurologic deficits secondary to experimental SAH.
    Article · Feb 2004 · Intensive Care Medicine
  • Article · Jan 2004 · Turkish Journal of Medical Sciences
  • K.A. Murshed · A.E. Çiçekcibaşi · T. Ziylan · A. Karabacakoǧlu
    [Show abstract] [Hide abstract] ABSTRACT: The sulcus angle of the femoral trochlea is particularly important for evaluating the patellofemoral joint. Our experimental study aimed to assess the osseous femoral sulcus angle radiologically in the right and left knees and osteologically in the right and left femurs in males and females. The osseous sulcus angle of 28 male right, 22 male left, 21 female right and 29 female left knees was measured on magnetic resonance images (MRIs) and by a goniometer; the angle was measured in 40 right and 40 left femurs. In MRIs, the mean sulcus angle in males and in females was 134° ± SD 5.1° and 133.2° ± SD 6.7°, respectively. In the right and left knees it was 133.5° ± SD 5.2° and 134.5° ± SD 6.7° respectively. No statistically significant differences were found between right and left knees in MRIs. In dry bones, the mean sulcus angle in the right and left femurs was 142.2° ± SD 9.7° and 141.2° ± SD 7.9°, respectively, with no significant difference. Statistical comparisons between the mean sulcus angle in MRIs and in dry femurs showed highly significant differences (P < 0.01). Our results suggest that there are no differences in the femoral osseous angle between men and women or between the right and left sides. Differences in the techniques and methods of angle assessments could explain the differences in their values.
    Article · Jan 2004 · Turkish Journal of Medical Sciences
  • D A Kireşi · A Karabacakoğlu · K Odev · S Karaköse
    [Show abstract] [Hide abstract] ABSTRACT: Hydatid disease is endemic in many parts of the world. It may develop in almost any part of the body. The location is mostly hepatic (75%) and pulmonary (15%), and only 10% occur in the rest of the body. In this article, the various imaging findings of hydatid cysts in unusual localizations are reviewed, based on our experience. Findings in brain, cavernous sinus, submandibular gland, thyroid gland, heart, pleura, chest wall, retrocrural tissue, kidney, spleen, pancreas, peritoneal cavity and inguinal canal, breast, bone and soft tissue are discussed.
    Article · Dec 2003 · Acta Radiologica
  • Dilek Emlik · Aydin Karabacakoğlu · Serdar Karaköse · [...] · Güngör Taştekin
    [Show abstract] [Hide abstract] ABSTRACT: Ectopic thyroid tissue can be found anywhere from foramen cecum and the normal cervical position of the thyroid gland. It occurs most commonly at the base of tongue, known as lingual, followed by sublingual and the anterior midline of neck. We present the patient with dual ectopic thyroid, one of them is at the base of tongue and the other is in the left submandibular region. The purpose of this report is to demonstrate the findings of ultrasonography, computed tomography, magnetic resonance imaging and scintigraphy and to emphasize the importance of performing a thyroid scan in every case of thyroid ectopia to accurately identify all sites of functioning thyroid tissue.
    Article · Dec 2003 · European Journal of Radiology Extra
  • D. A. Kıreşi · A. Karabacakoğlu · K. Ödev · S. Karaköse
    [Show abstract] [Hide abstract] ABSTRACT: Hydatid disease is endemic in many parts of the world. It may develop in almost any part of the body. The location is mostly hepatic (75%) and pulmonary (15%), and only 10% occur in the rest of the body. In this article, the various imaging findings of hydatid cysts in unusual localizations are reviewed, based on our experience. Findings in brain, cavernous sinus, submandibular gland, thyroid gland, heart, pleura, chest wall, retrocrural tissue, kidney, spleen, pancreas, peritoneal cavity and inguinal canal, breast, bone and soft tissue are discussed.
    Article · Nov 2003 · Acta Radiologica