Gökhan Söker - Academia.edu (original) (raw)

Papers by Gökhan Söker

Journal of Contemporary Medicine, 2015

JBR-BTR : organe de la Société royale belge de radiologie (SRBR) = orgaan van de Koninklijke Belgische Vereniging voor Radiologie (KBVR)

The Turkish journal of gastroenterology : the official journal of Turkish Society of Gastroenterology, 2013

Perforations of the duodenum are a significant source of morbidity in clinical practice. Surgical... more Perforations of the duodenum are a significant source of morbidity in clinical practice. Surgical repair is usually mandated, but it is associated with significant morbidity and mortality. Until recently, there has been no technique available which reproducibly and safely allowed endoscopic closures of penetrating defects within the digestive tract. With the new over-the-scope clipping system", which regarding design and function is similar to a bear-trap, the endoscopic closure of perforations has become possible. Here, we report our first experience with the over-the-scope clipping system for the closure of duodenal perforation developed during endoscopic retrograde cholangiopancreatography. A 79-year-old woman with jaundice resulting from obstruction of the common bile duct caused by choledocholithiasis underwent endoscopic retrograde cholangiopancreatography. At the time of the procedure, an endoscope-related perforation measuring about 15 mm was visualized proximal to the ...

Case Reports in Ophthalmological Medicine, 2015

Objective. Meningiomas are benign primary meningeal tumors and are seen rare in children and adol... more Objective. Meningiomas are benign primary meningeal tumors and are seen rare in children and adolescents. Clinical Presentation and Intervention. A 15-year-old Turkish boy reported a 1-month history of headache and blurred vision in both eyes. His visual acuity was 0.3 in both eyes with papilledema. Magnetic resonance imaging showed a 77 × 97 × 77 mm intracranial-extra-axial frontal lesion which compresses the chiasm. He was diagnosed with intracranial meningioma and referred to neurosurgery clinic. Conclusion. Ophthalmologists should be aware of the fact that papilledema and low vision can be caused by an intracranial tumor which compresses optic chiasm.

Nordic Journal of Psychiatry, 2014

Background: Mastalgia is a debilitating disorder, which has serious effects on one&am... more Background: Mastalgia is a debilitating disorder, which has serious effects on one's daily life and causes significant medical costs. Aim: Mastalgia patients determine the overall approach and improve the quality of life of patients. Methods: In this study, the outcomes of psychoeducation on anxiety and pain in a group of patients with mastalgia without an organic etiology have been investigated. 88 patients were included in this study. The socio-demographic data form, the Symptom Checklist 90 (SCL-90), the Toronto Alexithymia Scale-20 (TAS-20), the Hamilton Anxiety Scorer (HAM-A), the State-Trait Anxiety Inventory (STAI-I, STAI-2) and the Visual Analogue Scale (VAS) were all applied to the patients. 64 randomly selected patients (Group 1) were given psychoeducation while the remaining 24 (Group 2) were not. All patients were called back after 1 month for repeats of the HAM-A, STAI-I, STAI-2 and VAS tests. Results: The results of this study demonstrated that psychoeducation has positive impacts on the perception of pain besides stationary, contemporary and total anxiety scores. Conclusions: It is concluded that the administration of psychoeducation is a good choice in the degradation of anxiety symptoms and pain.

Turkish Journal of Trauma and Emergency Surgery, 2014

This study aimed to evaluate the diagnostic value of gray-scale and power Doppler sonography for ... more This study aimed to evaluate the diagnostic value of gray-scale and power Doppler sonography for acute cholecystitis and show a correlation between sonographic and intraoperative findings, quantitively. Forty chronic and forty acute cholecystitis patients were examined. Early laparoscopic cholecystectomy was performed for acute cholecystitis. Demographic characteristics, sonographic findings, and adhesion scores were analyzed. Data were collected prospectively (clinicaltrials.gov: NCT02156947). Wall thickness (≥3 mm) and vascularity increased in acute cholecystitis (p<0.01 and <0.01). Vascularity was found to be moderately correlated with adhesion (p<0.01, r=0.59) but it did not affect the difficulty of the operation by means of perforation, conversion rate, and operation time. In addition, wall thickness did not correlate with adhesion formation (p=0.36). Sensitivity and specifity of wall thickness and vascularity were found to be 96.9%, 72.7%, and 68%, 87.2%, respectively. When both diagnostic measurements were taken into account, sensitivity was calculated 69.7% and specificity reached up to 97.6%. Vascularity correlated with adhesion but failed to predict operation difficulty. Specificity of gray-scale sonography could be improved with power Doppler examination; however, desired diagnostic accuracy could not be obtained with only quantitive measurements of sonography.

North American Journal of Medical Sciences, 2014

Distant metastases of primary malignancies to the skeletal muscle tissue are a very rare event. D... more Distant metastases of primary malignancies to the skeletal muscle tissue are a very rare event. Distant metastases that affect the rotator cuff are even rarer, and only a few of cases have been reported so far. The present article reports two cases that presented to our hospital with the complaint of shoulder pain and had a soft tissue mass affecting the muscles of the rotator cuff and invading the neighboring bone compartments. One of the patients developed mucoepidermoid cancer metastasis of the submandibular gland, and the other was found to have a malignant epithelial tumor metastasized from the lower lobe of the right lung, whose primary origin could not be diagnosed until the imaging examinations were employed. Ultrasound and magnetic resonance imaging findings are presented in this paper. Metastases to the muscle tissues could be misdiagnosed as primary sarcomas. Because the therapy regiments and prognoses are fairly different for these two entities, the possibility of a metastasis to the muscle tissue must be considered as a differential diagnosis for case of painful soft tissue mass. Ultrasound is very useful in detection of the lesion and acts as a very important tool during guidance for biopsy. Magnetic resonance imaging, however, is a very valuable asset in the evaluation of the borders of the soft tissue mass and its invasive effect on the bony tissues. Particularly when the features such as lobulated contours, peripheral edema, and intratumoral necrosis exist, the possibility of metastases must be considered.

Case Reports in Radiology, 2014

Inguinal hernias in the newborn age group are seldom encountered. In the afected female patient, ... more Inguinal hernias in the newborn age group are seldom encountered. In the afected female patient, the ovaries, fallopian tubes, and the intestines may settle in the hernia sac. he early diagnosis of torsion in cases in which the ovary is herniated into the inguinal canal is of utmost importance in order to give surgery the chance of reduction and correction. In this paper, a case of an ovarian herniation into the inguinal canal without the presence of torsion is being presented, and the place of US and CDUS in the diferential diagnosis of the situation is being discussed.

Open Journal of Radiology, 2014

The aim of this study was to assess the knee joints of osteoarthritis patients in terms of clinic... more The aim of this study was to assess the knee joints of osteoarthritis patients in terms of clinical and magnetic resonance imaging (MRI) measurements and draw definitive conclusions from these quantimetric data. In order to achieve the above-mentioned goal, the knees of individuals from two distinct groups were examined by MRI. One group consisted of osteoarthritis patients while the other comprised the control individuals. All individuals from both groups underwent clinical and MRI measurements concerning their knees. These data were compared by using the statistical software from the Statistical Package for Social Sciences (SPSS) v.15 program. Statistically significant differences were found between the control and patients groups in terms of the measurements of the second (short) diameter of the medial femoral condyle, and the intercondylar distance (p < 0.05). In addition to these findings, the Receiver Operating Characteristics (ROC) curve analysis gave statistically significant results for both of these measurements. The cutoff values for these criteria were as follows in sequence order: a sensitivity of 75% and a specificity of 52% for the medial femoral condyle, and a sensitivity of 70% and a specificity of 70% for the intercondylar distance. The ROC curve data may not be a deterministic outcome alone for this study. But it may * Corresponding author.

Case Reports in Radiology, 2014

A 42-year-old female patient, who had been diagnosed with an occlusion of her left internal carot... more A 42-year-old female patient, who had been diagnosed with an occlusion of her left internal carotid artery (ICA) following Doppler ultrasonographic (US) and digitally-subtracted angiographic (DSA) examinations performed in an outer healthcare center in order to eliminate the underlying cause of her complaint of amorosis fugax, later applied to our hospital with the same complaint. At Doppler US performed in our hospital&amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;#39;s radiology department, her right common carotid artery (CCA) was normal, but her left CCA was hypoplastic. The right internal artery (ICA) was validated as normal. At the left side, however, the ICA was apparent only as a stump and it did not demonstrate a continuity. The diagnosis of ICA agenesis was confirmed by the utilization of Doppler US, CT, and DSA imaging, and it was concluded also that ipsilateral CCA hypoplasia could be evaluated as an important clue to the diagnosis of ICA agenesis.

Case Reports, 2014

The most important complication of intestinal malrotation is midgut volvulus because it may lead ... more The most important complication of intestinal malrotation is midgut volvulus because it may lead to intestinal ischaemia and necrosis. A 29-year-old male patient was admitted to the emergency department with abdominal pain. Ultrasonography (US), colour Doppler ultrasonography (CDUS), CT and barium studies were carried out. On US and CDUS, twisting of intestinal segments around the superior mesenteric artery (SMA) and superior mesenteric vein (SMV) and alteration of the SMA-SMV relationship were detected. CT demonstrated that the small intestine was making a rotation around the SMA and SMV, which amounted to more than 360°. The upper gastrointestinal barium series revealed a corkscrew appearance of the duodenum and proximal jejunum, which is a pathognomonic finding of midgut volvulus. Prior knowledge of characteristic imaging findings of midgut volvulus is essential in order to reach proper diagnosis and establish proper treatment before the development of intestinal ischaemia and necrosis.

Nephron. Clinical practice, 2006

Renovascular hypertension, which may lead to end-stage renal failure, necessitates prompt diagnos... more Renovascular hypertension, which may lead to end-stage renal failure, necessitates prompt diagnosis and medication. Although various diagnostic tools exist for evaluation of renal arteries, magnetic resonance angiography (MRA), with the improvement of hardware and software systems, has become a very promising technique in screening patients with suspected renal hypertension. In this study, we aimed to assess renal artery stenosis on MRA in patients with suspected renovascular disease using a parallel imaging technique which allows faster scanning with higher resolution.

Acta Medica Mediterranea

Aims: The purpose of the study was to establish whether the patients presenting with abdominal pa... more Aims: The purpose of the study was to establish whether the patients presenting with abdominal pain should undergo to contrast enhanced CT (Computed tomography). For this purpose, we have investigated the possible relationship between CRP (C-reactive protein), WBC (White blood cell), neutrophil levels and the presence of pathological findings determined on abdominal pelvic CT images. Materials and methods: Patients who were admitted to Emergency Department between 01.01.2012 - 31.12.2012 with abdominal pain and underwent intravenous contrast-enhanced abdominal-pelvic CT scan were enrolled in this retrospective study. Results: Totally 130 patients were included in the study. A statistically significant correlation was found between the presence of pathological findings determined on abdominal-pelvic CT images and CRP, WBC and neutrophil levels. Pathological findings were found to be positive on CT images of patients with CRP > 0.8 mg / dl (78.33% sensitivity and 98% specificity), ...

Journal of Contemporary Medicine, 2015

JBR-BTR : organe de la Société royale belge de radiologie (SRBR) = orgaan van de Koninklijke Belgische Vereniging voor Radiologie (KBVR)

The Turkish journal of gastroenterology : the official journal of Turkish Society of Gastroenterology, 2013

Perforations of the duodenum are a significant source of morbidity in clinical practice. Surgical... more Perforations of the duodenum are a significant source of morbidity in clinical practice. Surgical repair is usually mandated, but it is associated with significant morbidity and mortality. Until recently, there has been no technique available which reproducibly and safely allowed endoscopic closures of penetrating defects within the digestive tract. With the new over-the-scope clipping system", which regarding design and function is similar to a bear-trap, the endoscopic closure of perforations has become possible. Here, we report our first experience with the over-the-scope clipping system for the closure of duodenal perforation developed during endoscopic retrograde cholangiopancreatography. A 79-year-old woman with jaundice resulting from obstruction of the common bile duct caused by choledocholithiasis underwent endoscopic retrograde cholangiopancreatography. At the time of the procedure, an endoscope-related perforation measuring about 15 mm was visualized proximal to the ...

Case Reports in Ophthalmological Medicine, 2015

Objective. Meningiomas are benign primary meningeal tumors and are seen rare in children and adol... more Objective. Meningiomas are benign primary meningeal tumors and are seen rare in children and adolescents. Clinical Presentation and Intervention. A 15-year-old Turkish boy reported a 1-month history of headache and blurred vision in both eyes. His visual acuity was 0.3 in both eyes with papilledema. Magnetic resonance imaging showed a 77 × 97 × 77 mm intracranial-extra-axial frontal lesion which compresses the chiasm. He was diagnosed with intracranial meningioma and referred to neurosurgery clinic. Conclusion. Ophthalmologists should be aware of the fact that papilledema and low vision can be caused by an intracranial tumor which compresses optic chiasm.

Nordic Journal of Psychiatry, 2014

Background: Mastalgia is a debilitating disorder, which has serious effects on one&amp;amp;am... more Background: Mastalgia is a debilitating disorder, which has serious effects on one&amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;#39;s daily life and causes significant medical costs. Aim: Mastalgia patients determine the overall approach and improve the quality of life of patients. Methods: In this study, the outcomes of psychoeducation on anxiety and pain in a group of patients with mastalgia without an organic etiology have been investigated. 88 patients were included in this study. The socio-demographic data form, the Symptom Checklist 90 (SCL-90), the Toronto Alexithymia Scale-20 (TAS-20), the Hamilton Anxiety Scorer (HAM-A), the State-Trait Anxiety Inventory (STAI-I, STAI-2) and the Visual Analogue Scale (VAS) were all applied to the patients. 64 randomly selected patients (Group 1) were given psychoeducation while the remaining 24 (Group 2) were not. All patients were called back after 1 month for repeats of the HAM-A, STAI-I, STAI-2 and VAS tests. Results: The results of this study demonstrated that psychoeducation has positive impacts on the perception of pain besides stationary, contemporary and total anxiety scores. Conclusions: It is concluded that the administration of psychoeducation is a good choice in the degradation of anxiety symptoms and pain.

Turkish Journal of Trauma and Emergency Surgery, 2014

This study aimed to evaluate the diagnostic value of gray-scale and power Doppler sonography for ... more This study aimed to evaluate the diagnostic value of gray-scale and power Doppler sonography for acute cholecystitis and show a correlation between sonographic and intraoperative findings, quantitively. Forty chronic and forty acute cholecystitis patients were examined. Early laparoscopic cholecystectomy was performed for acute cholecystitis. Demographic characteristics, sonographic findings, and adhesion scores were analyzed. Data were collected prospectively (clinicaltrials.gov: NCT02156947). Wall thickness (≥3 mm) and vascularity increased in acute cholecystitis (p&amp;amp;amp;amp;amp;amp;amp;amp;lt;0.01 and &amp;amp;amp;amp;amp;amp;amp;amp;lt;0.01). Vascularity was found to be moderately correlated with adhesion (p&amp;amp;amp;amp;amp;amp;amp;amp;lt;0.01, r=0.59) but it did not affect the difficulty of the operation by means of perforation, conversion rate, and operation time. In addition, wall thickness did not correlate with adhesion formation (p=0.36). Sensitivity and specifity of wall thickness and vascularity were found to be 96.9%, 72.7%, and 68%, 87.2%, respectively. When both diagnostic measurements were taken into account, sensitivity was calculated 69.7% and specificity reached up to 97.6%. Vascularity correlated with adhesion but failed to predict operation difficulty. Specificity of gray-scale sonography could be improved with power Doppler examination; however, desired diagnostic accuracy could not be obtained with only quantitive measurements of sonography.

North American Journal of Medical Sciences, 2014

Distant metastases of primary malignancies to the skeletal muscle tissue are a very rare event. D... more Distant metastases of primary malignancies to the skeletal muscle tissue are a very rare event. Distant metastases that affect the rotator cuff are even rarer, and only a few of cases have been reported so far. The present article reports two cases that presented to our hospital with the complaint of shoulder pain and had a soft tissue mass affecting the muscles of the rotator cuff and invading the neighboring bone compartments. One of the patients developed mucoepidermoid cancer metastasis of the submandibular gland, and the other was found to have a malignant epithelial tumor metastasized from the lower lobe of the right lung, whose primary origin could not be diagnosed until the imaging examinations were employed. Ultrasound and magnetic resonance imaging findings are presented in this paper. Metastases to the muscle tissues could be misdiagnosed as primary sarcomas. Because the therapy regiments and prognoses are fairly different for these two entities, the possibility of a metastasis to the muscle tissue must be considered as a differential diagnosis for case of painful soft tissue mass. Ultrasound is very useful in detection of the lesion and acts as a very important tool during guidance for biopsy. Magnetic resonance imaging, however, is a very valuable asset in the evaluation of the borders of the soft tissue mass and its invasive effect on the bony tissues. Particularly when the features such as lobulated contours, peripheral edema, and intratumoral necrosis exist, the possibility of metastases must be considered.

Case Reports in Radiology, 2014

Inguinal hernias in the newborn age group are seldom encountered. In the afected female patient, ... more Inguinal hernias in the newborn age group are seldom encountered. In the afected female patient, the ovaries, fallopian tubes, and the intestines may settle in the hernia sac. he early diagnosis of torsion in cases in which the ovary is herniated into the inguinal canal is of utmost importance in order to give surgery the chance of reduction and correction. In this paper, a case of an ovarian herniation into the inguinal canal without the presence of torsion is being presented, and the place of US and CDUS in the diferential diagnosis of the situation is being discussed.

Open Journal of Radiology, 2014

The aim of this study was to assess the knee joints of osteoarthritis patients in terms of clinic... more The aim of this study was to assess the knee joints of osteoarthritis patients in terms of clinical and magnetic resonance imaging (MRI) measurements and draw definitive conclusions from these quantimetric data. In order to achieve the above-mentioned goal, the knees of individuals from two distinct groups were examined by MRI. One group consisted of osteoarthritis patients while the other comprised the control individuals. All individuals from both groups underwent clinical and MRI measurements concerning their knees. These data were compared by using the statistical software from the Statistical Package for Social Sciences (SPSS) v.15 program. Statistically significant differences were found between the control and patients groups in terms of the measurements of the second (short) diameter of the medial femoral condyle, and the intercondylar distance (p < 0.05). In addition to these findings, the Receiver Operating Characteristics (ROC) curve analysis gave statistically significant results for both of these measurements. The cutoff values for these criteria were as follows in sequence order: a sensitivity of 75% and a specificity of 52% for the medial femoral condyle, and a sensitivity of 70% and a specificity of 70% for the intercondylar distance. The ROC curve data may not be a deterministic outcome alone for this study. But it may * Corresponding author.

Case Reports in Radiology, 2014

A 42-year-old female patient, who had been diagnosed with an occlusion of her left internal carot... more A 42-year-old female patient, who had been diagnosed with an occlusion of her left internal carotid artery (ICA) following Doppler ultrasonographic (US) and digitally-subtracted angiographic (DSA) examinations performed in an outer healthcare center in order to eliminate the underlying cause of her complaint of amorosis fugax, later applied to our hospital with the same complaint. At Doppler US performed in our hospital&amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;#39;s radiology department, her right common carotid artery (CCA) was normal, but her left CCA was hypoplastic. The right internal artery (ICA) was validated as normal. At the left side, however, the ICA was apparent only as a stump and it did not demonstrate a continuity. The diagnosis of ICA agenesis was confirmed by the utilization of Doppler US, CT, and DSA imaging, and it was concluded also that ipsilateral CCA hypoplasia could be evaluated as an important clue to the diagnosis of ICA agenesis.

Case Reports, 2014

The most important complication of intestinal malrotation is midgut volvulus because it may lead ... more The most important complication of intestinal malrotation is midgut volvulus because it may lead to intestinal ischaemia and necrosis. A 29-year-old male patient was admitted to the emergency department with abdominal pain. Ultrasonography (US), colour Doppler ultrasonography (CDUS), CT and barium studies were carried out. On US and CDUS, twisting of intestinal segments around the superior mesenteric artery (SMA) and superior mesenteric vein (SMV) and alteration of the SMA-SMV relationship were detected. CT demonstrated that the small intestine was making a rotation around the SMA and SMV, which amounted to more than 360°. The upper gastrointestinal barium series revealed a corkscrew appearance of the duodenum and proximal jejunum, which is a pathognomonic finding of midgut volvulus. Prior knowledge of characteristic imaging findings of midgut volvulus is essential in order to reach proper diagnosis and establish proper treatment before the development of intestinal ischaemia and necrosis.

Nephron. Clinical practice, 2006

Renovascular hypertension, which may lead to end-stage renal failure, necessitates prompt diagnos... more Renovascular hypertension, which may lead to end-stage renal failure, necessitates prompt diagnosis and medication. Although various diagnostic tools exist for evaluation of renal arteries, magnetic resonance angiography (MRA), with the improvement of hardware and software systems, has become a very promising technique in screening patients with suspected renal hypertension. In this study, we aimed to assess renal artery stenosis on MRA in patients with suspected renovascular disease using a parallel imaging technique which allows faster scanning with higher resolution.

Acta Medica Mediterranea

Aims: The purpose of the study was to establish whether the patients presenting with abdominal pa... more Aims: The purpose of the study was to establish whether the patients presenting with abdominal pain should undergo to contrast enhanced CT (Computed tomography). For this purpose, we have investigated the possible relationship between CRP (C-reactive protein), WBC (White blood cell), neutrophil levels and the presence of pathological findings determined on abdominal pelvic CT images. Materials and methods: Patients who were admitted to Emergency Department between 01.01.2012 - 31.12.2012 with abdominal pain and underwent intravenous contrast-enhanced abdominal-pelvic CT scan were enrolled in this retrospective study. Results: Totally 130 patients were included in the study. A statistically significant correlation was found between the presence of pathological findings determined on abdominal-pelvic CT images and CRP, WBC and neutrophil levels. Pathological findings were found to be positive on CT images of patients with CRP > 0.8 mg / dl (78.33% sensitivity and 98% specificity), ...