byung-june jo - Academia.edu (original) (raw)
Papers by byung-june jo
Dieulafoy's lesion is an uncommon cause of gastrointestinal bleeding. Hemorrhage occurs thro... more Dieulafoy's lesion is an uncommon cause of gastrointestinal bleeding. Hemorrhage occurs through mucosal erosion from an abnormally dilated submucosal artery. Although Dieulafoy's lesion is usually located in the stomach, it may occur anywhere in the gastrointestinal tract. We report here on a case of jejunal Dieulafoy's lesion presenting as a mass and short segment stricture on CT and enteroclysis. Key Words: Dieulafoy's lesion, jejunum, CT, enteroclysis
Journal of the Korean Radiological Society
예 (65. 7% ) 에 서 관류결손부위가 나타났다. 관류결손이 있던 군에서는 국소 쐐기형 2 예 (5.7%) , 다발성 쐐기형 8 예 (22.9%) , 국소 종괴형 4 예 ... more 예 (65. 7% ) 에 서 관류결손부위가 나타났다. 관류결손이 있던 군에서는 국소 쐐기형 2 예 (5.7%) , 다발성 쐐기형 8 예 (22.9%) , 국소 종괴형 4 예 (11.0%) , 그리고 혼합형 9 예 (25.7 %) 였 다. 이중 국소 흑은 다발성 쐐기형， 흔합형인 경우에는 항생제 치료 후 해열까지의 기간에서 별다른 차이 를 보이지 않았으나 종괴형인 경우에는 통계적으로 의미있는 차이를 보였다 (4.0, 7.1, 7.4 vs Address reprint r equest s t o :
Journal of the Korean Radiological Society
Journal of the Korean Radiological Society
Journal of the Korean Radiological Society
Journal of the Korean Radiological Society
Compared with the well-known vacuum phenomenon of the intervertebral disc space, a gas-containing... more Compared with the well-known vacuum phenomenon of the intervertebral disc space, a gas-containing cyst in the epidural space is a rare disease entity. Intervertebral gas can migrate to the epidural space through ruptures in the annulus fibrosus, and it manifests as squeezed air in the herniated disc, as contained air in the pseudocyst that is without a larger amount of disc material, or as free air. There have been several reports about gas collections in the spinal canal that are associated with disc degeneration (1 7). These intraspinal gas collections were actually gas-containing disc herniations or collections of epidural leaked gas from the adjacent disc. However, a symptomatic epidural gas-containing cyst has been rarely reported on. The reason for this scarcity of reports is attributed to the fact that most of the epidural gas collections are related to interventional procedures like epidural pain block, and many radiologists neglect small amounts of epidural gas collections as being natural things. We recently experienced two cases of epidural gas-containing cysts with concomitant radiculopathy. Herein, we present the radiographic findings of these 2 cases of epidural gas-containing cysts.
Journal of the Korean Radiological Society
Purpose: We wanted to analyze the radiological changes of the patients who underwent percutaneous... more Purpose: We wanted to analyze the radiological changes of the patients who underwent percutaneous endoscopic lumbar discectomy (PELD) for treating soft disc herniation. Materials and Methods: We retrospectively reviewed 30 patients (32 cases) who were observed for a minimum of 3 years after they underwent PELD. The authors investigated the postoperative radiological changes after PELD and the related clinical outcomes. All the patients received plain X-rays, CT and MRI both preoperatively and at the final follow-up. The radiological parameters were evaluated, including the disc height, the disc signal intensity, the subchondral marrow signal intensity, the sagittal plane instability and the facet joint osteoarthritis. Results: The average amount of removed disc was 1.363 g and a significant correlation was detected between the narrowing of disc height and the amount of removed disc. Although the disc height and the disc height ratio were significantly decreased ( 0.97 mm and 86.9%, respectively), the angle of sagittal rotation was well maintained. There were 18 (56.3%) cases of disc signal changes, six cases (18.8%) of subchondral marrow signal changes, and three cases (9.4%) of facet joint osteoarthritis. The success rate was 90.6%. Conclusion: Although disc height narrowing was observed, there was no postoperative instability and the overall clinical outcome was satisfactory. Our results show that PELD is a useful and minimal invasive procedure for the selected patients who are suffering with lumbar disc herniation.
Journal of the Korean Radiological Society
Intradural disc herniation is a very rare condition with an incidence that ranges from 0.26% to 0... more Intradural disc herniation is a very rare condition with an incidence that ranges from 0.26% to 0.30% of all herniated discs (1). Myelography, computed tomography (CT) and magnetic resonance imaging (MRI) are generally used to diagnose intradural lumbar disc herniation (IDLDH), but there can be some differences according to each case. Several studies have reported of a potential association between intradural disc herniation and gas within the spinal canal. However, to our knowledge, there are no reports of IDLDH together with intradural vacuum (IDV). This report presents three cases of IDLDH that were diagnosed by a radiological examination with a review of the relevant literature.
Journal of the Korean Radiological Society, 1997
결 과 : 합병증은 1 57예중 40예 (25 .5%)에서 발생하였고， 이 중 기흉이 26 예(1 6.7%) ， 객 혈이 11 예 (7 % ) ， 혈흉이 2 예(1. 3%) ... more 결 과 : 합병증은 1 57예중 40예 (25 .5%)에서 발생하였고， 이 중 기흉이 26 예(1 6.7%) ， 객 혈이 11 예 (7 % ) ， 혈흉이 2 예(1. 3%) 였으며， 생검부위의 흉벽에 암의 전이가 1 예 있었다. 병 변에서 흉막까지의 거리가 멸수록 기흉이 많이 발생하였다 (2cm 미만군， 12.9% ; 2 -4cm 인 군， 24 .4%; 4cm 이상군， 57 .1 %[ p <0.05J ). 폐기능 검사상 노력성 폐활량 (FVC ， forced vital capacity) 은 두 군에서 각각 2.6 :t 0.9L 및 3.1 :t 0.8L로 기흉이 발생한 군에서 유의하게 낮 았으나 (p< 0.05) , 1 초간 노력성 호기량 (FEV1 ， forced expiratory volume in 1 second) , FEV1 의 예 측치에 대한 비율 (FEV1 %) ， FEVl! FVC 비， FVC 의 예측치에 대한 비율 (FVC
Journal of the Korean Radiological Society, 2006
A B C D E Fig. 1. A 44-year-old male presented with left leg pain and voiding difficulty. A. Sagi... more A B C D E Fig. 1. A 44-year-old male presented with left leg pain and voiding difficulty. A. Sagittal T1-weighted MR image shows thecal sac severely compressed by posterior epidural hypointensity mass lesion at the L4-5 level. B. Sagittal T2-weighted MR image shows heterogeneous slightly hyperintensity mass on same level of Fig. A. C, D. Contrast enhanced T1-weighted sagittal (C) and axial (D) MR images show hypointenisty mass with peripheral rim enhancement at L4-5. E. Photomicrograph (H & E, 100) shows sequestered disc with myxoid/hyaline degeneration, neovascularization and hemorrhage.
Journal of the Korean Radiological Society, 1996
Purpose: To evaluate the usefulness of fast magnetic resonance (MR) sequences combined with MR ar... more Purpose: To evaluate the usefulness of fast magnetic resonance (MR) sequences combined with MR arterial portography in the preoperative assessment of hepatocellular carcinoma. Materials and Methods: Twelve patients suffering from nodular hepatocellular carcinoma complicated by liver cirrhos is underwent T2-weighted turbo spin echo and T1-weighted multisection FLASH with and without fat-suppression MR imaging during single breath-hold session in each sequence. MR arterial portography was performed with Gd-DTPA injected through a catheter into the superior mesenteric or splenic artery during the T1 -weighted FLASH sequence. The pathologic findings of surgical specimen or follow-up lipiodol CT findings were compared with the MR imaging. Results: MR arterial portography depicted 17 of the 19 masses (sensitivity , 89 %) and the sensitivity of non-contrast fast MR sequences was 74 % (14/19) . The sensitiv ity for combined interpretation of all the above sequences was 89 % (17/19 ). MR arterial portography showed perfusion defects from two cysts , one hemangioma , one inflammatory mass , and innumerable tiny regenerating nodules. Static T1 -and T2-weighted imaging clearly differentiated , however, benign lesions and true hepatocell 비 ar carclnoma. Conclusion: MR arterial portography combined with other fast MR imaging allows tissue characterization as well as high detection rate in the evaluation of hepatocellular carcinoma complicated with cirrhosis Index Words: Li ver neoplasms, MR Magnetic resonan ce (MR ), rapid imaging Portography Address reprint requests to :
Journal of the Korean Radiological Society, 1999
Journal of the Korean Radiological Society, 2008
Intraspinal synovial cysts are found within the lumbar spine and less commonly found in the cervi... more Intraspinal synovial cysts are found within the lumbar spine and less commonly found in the cervical spine (1). An occurrence of a cyst in the thoracic spine causing myelopathy is extremely rare (2) and to the best of our knowledge, 25 cases of thoracic synovial cyst have been reported in the English language clinical literature and of these cases, only seven cases have been reported where a synovial cyst was combined with myelopathy. These intraspinal extradural cysts arise from the facet capsules of degenerative facet joints and are designated as synovial (1, 2), juxtafacet (3), ganglion (4), or ligamentum flavum cysts (5). We report the radiological findings of a case of thoracic intraspinal synovial cyst that caused myelopathy at the T2-3 level.
PURPOSE To reveal the difference of clinical and radiological findings between the symptomatic an... more PURPOSE To reveal the difference of clinical and radiological findings between the symptomatic and non-symptomatic group and eventually to find factors correlated with symptoms METHOD AND MATERIALS During the 20-months period, we reviewed 8100 cases of lumbar CT scans and found 92 intraspinal gases (ISG) from 80 patients without history of recent surgical or interventional procedures in the spine. They were divided into symptomatic and non-symptomatic groups with the clinical data. The lesions were morphologically classified as type I (intradiscal gas), type II (juxtadiscal gas), and type III (pure gas without visible herniated disc component) by the radiological review. According to the axial location of the lesion, these lesions were classified as the lateral (foraminal and extraforaminal) type and central type (central, paracentral, and lateral recess). Using the data about the sex, age, level, the maximum cross-sectional area of the ISG, disc height, sagittal rotation angle, pre...
Yonsei medical journal, 2000
Contrast enhancement during the dynamic MR imaging is important for the detection and characteriz... more Contrast enhancement during the dynamic MR imaging is important for the detection and characterization of focal liver lesions. The purpose of this study was to determine whether or not a timing examination with a injection of a 1.0-mL bolus of gadopentetate dimeglumine into the antecubital vein followed by rapid dynamic scanning and measurement of signal intensity of the aorta could help to obtain proper arterial-dominant phase images for the characterization of focal hepatic lesions during subsequent multiphase dynamic MR imaging. The imaging delay to acquisition of the first gadolinium-enhanced image for multiphase dynamic MR imaging was set to equal the time to peak aortic enhancement during the test examination. The first contrast-enhanced images of 80 patients with 160 focal liver lesions (hepatocellular carcinoma, n = 79; cavernous hemangioma, n = 51; metastatic tumor, n = 30) were then retrospectively reviewed. Peak aortic enhancement occurred between 10 and 28 seconds (mean,...
Yonsei medical journal, 1999
The aim of this study was to determine the usefulness of quantitative analysis of multiphasic dyn... more The aim of this study was to determine the usefulness of quantitative analysis of multiphasic dynamic contrast-enhanced magnetic resonance (MR) imaging in differentiating early homogeneously enhancing hemangiomas from hepatocellular carcinomas (HCCs). Four-phased dynamic MR imaging at 10 sec (first phase of dynamic contrast-enhanced imaging, P1), 35 sec (second phase, P2), 60 sec (third phase, P3) and 300 sec (delay phase, P4) immediately after intravenous administration of 0.1 mmol/kg Gadolinium-DTPA was obtained with 1.5-T unit with breath-hold multisection FLASH (fast low angle-shot) sequence (TR/TE, 113-130 msec/4.1 msec; flip angle, 80 degrees). Thirty-three HCCs and 18 hemangiomas, homogeneously enhanced on P1, were included in the study. The images were evaluated quantitatively (SNR, signal-to-noise ratio; and CNR, contrast- to- noise ratio of lesions). Quantitatively, mean CNR was higher for hemangiomas than for HCCs on all phases, and the difference in CNRs between hemangio...
Yonsei Medical Journal, 1999
Yonsei Medical Journal, 2006
Yonsei Medical Journal, 2005
Journal of Neurosurgery: Spine, 2000
✓ The authors describe a rare case of an intradural cervical disc herniation in a 40-year-old man... more ✓ The authors describe a rare case of an intradural cervical disc herniation in a 40-year-old man presenting with Brown—Séquard's syndrome. Magnetic resonance imaging revealed the pathological entity at the C5–6 disc space, which showed suspicious signs of intradural extension of the disc herniation. After the patient underwent microsurgical removal of the herniated disc via an anterior approach, he experienced a complete remission of symptoms. The existing pertinent literature is reviewed, and diagnostic and therapeutic implications are discussed.
Dieulafoy's lesion is an uncommon cause of gastrointestinal bleeding. Hemorrhage occurs thro... more Dieulafoy's lesion is an uncommon cause of gastrointestinal bleeding. Hemorrhage occurs through mucosal erosion from an abnormally dilated submucosal artery. Although Dieulafoy's lesion is usually located in the stomach, it may occur anywhere in the gastrointestinal tract. We report here on a case of jejunal Dieulafoy's lesion presenting as a mass and short segment stricture on CT and enteroclysis. Key Words: Dieulafoy's lesion, jejunum, CT, enteroclysis
Journal of the Korean Radiological Society
예 (65. 7% ) 에 서 관류결손부위가 나타났다. 관류결손이 있던 군에서는 국소 쐐기형 2 예 (5.7%) , 다발성 쐐기형 8 예 (22.9%) , 국소 종괴형 4 예 ... more 예 (65. 7% ) 에 서 관류결손부위가 나타났다. 관류결손이 있던 군에서는 국소 쐐기형 2 예 (5.7%) , 다발성 쐐기형 8 예 (22.9%) , 국소 종괴형 4 예 (11.0%) , 그리고 혼합형 9 예 (25.7 %) 였 다. 이중 국소 흑은 다발성 쐐기형， 흔합형인 경우에는 항생제 치료 후 해열까지의 기간에서 별다른 차이 를 보이지 않았으나 종괴형인 경우에는 통계적으로 의미있는 차이를 보였다 (4.0, 7.1, 7.4 vs Address reprint r equest s t o :
Journal of the Korean Radiological Society
Journal of the Korean Radiological Society
Journal of the Korean Radiological Society
Journal of the Korean Radiological Society
Compared with the well-known vacuum phenomenon of the intervertebral disc space, a gas-containing... more Compared with the well-known vacuum phenomenon of the intervertebral disc space, a gas-containing cyst in the epidural space is a rare disease entity. Intervertebral gas can migrate to the epidural space through ruptures in the annulus fibrosus, and it manifests as squeezed air in the herniated disc, as contained air in the pseudocyst that is without a larger amount of disc material, or as free air. There have been several reports about gas collections in the spinal canal that are associated with disc degeneration (1 7). These intraspinal gas collections were actually gas-containing disc herniations or collections of epidural leaked gas from the adjacent disc. However, a symptomatic epidural gas-containing cyst has been rarely reported on. The reason for this scarcity of reports is attributed to the fact that most of the epidural gas collections are related to interventional procedures like epidural pain block, and many radiologists neglect small amounts of epidural gas collections as being natural things. We recently experienced two cases of epidural gas-containing cysts with concomitant radiculopathy. Herein, we present the radiographic findings of these 2 cases of epidural gas-containing cysts.
Journal of the Korean Radiological Society
Purpose: We wanted to analyze the radiological changes of the patients who underwent percutaneous... more Purpose: We wanted to analyze the radiological changes of the patients who underwent percutaneous endoscopic lumbar discectomy (PELD) for treating soft disc herniation. Materials and Methods: We retrospectively reviewed 30 patients (32 cases) who were observed for a minimum of 3 years after they underwent PELD. The authors investigated the postoperative radiological changes after PELD and the related clinical outcomes. All the patients received plain X-rays, CT and MRI both preoperatively and at the final follow-up. The radiological parameters were evaluated, including the disc height, the disc signal intensity, the subchondral marrow signal intensity, the sagittal plane instability and the facet joint osteoarthritis. Results: The average amount of removed disc was 1.363 g and a significant correlation was detected between the narrowing of disc height and the amount of removed disc. Although the disc height and the disc height ratio were significantly decreased ( 0.97 mm and 86.9%, respectively), the angle of sagittal rotation was well maintained. There were 18 (56.3%) cases of disc signal changes, six cases (18.8%) of subchondral marrow signal changes, and three cases (9.4%) of facet joint osteoarthritis. The success rate was 90.6%. Conclusion: Although disc height narrowing was observed, there was no postoperative instability and the overall clinical outcome was satisfactory. Our results show that PELD is a useful and minimal invasive procedure for the selected patients who are suffering with lumbar disc herniation.
Journal of the Korean Radiological Society
Intradural disc herniation is a very rare condition with an incidence that ranges from 0.26% to 0... more Intradural disc herniation is a very rare condition with an incidence that ranges from 0.26% to 0.30% of all herniated discs (1). Myelography, computed tomography (CT) and magnetic resonance imaging (MRI) are generally used to diagnose intradural lumbar disc herniation (IDLDH), but there can be some differences according to each case. Several studies have reported of a potential association between intradural disc herniation and gas within the spinal canal. However, to our knowledge, there are no reports of IDLDH together with intradural vacuum (IDV). This report presents three cases of IDLDH that were diagnosed by a radiological examination with a review of the relevant literature.
Journal of the Korean Radiological Society, 1997
결 과 : 합병증은 1 57예중 40예 (25 .5%)에서 발생하였고， 이 중 기흉이 26 예(1 6.7%) ， 객 혈이 11 예 (7 % ) ， 혈흉이 2 예(1. 3%) ... more 결 과 : 합병증은 1 57예중 40예 (25 .5%)에서 발생하였고， 이 중 기흉이 26 예(1 6.7%) ， 객 혈이 11 예 (7 % ) ， 혈흉이 2 예(1. 3%) 였으며， 생검부위의 흉벽에 암의 전이가 1 예 있었다. 병 변에서 흉막까지의 거리가 멸수록 기흉이 많이 발생하였다 (2cm 미만군， 12.9% ; 2 -4cm 인 군， 24 .4%; 4cm 이상군， 57 .1 %[ p <0.05J ). 폐기능 검사상 노력성 폐활량 (FVC ， forced vital capacity) 은 두 군에서 각각 2.6 :t 0.9L 및 3.1 :t 0.8L로 기흉이 발생한 군에서 유의하게 낮 았으나 (p< 0.05) , 1 초간 노력성 호기량 (FEV1 ， forced expiratory volume in 1 second) , FEV1 의 예 측치에 대한 비율 (FEV1 %) ， FEVl! FVC 비， FVC 의 예측치에 대한 비율 (FVC
Journal of the Korean Radiological Society, 2006
A B C D E Fig. 1. A 44-year-old male presented with left leg pain and voiding difficulty. A. Sagi... more A B C D E Fig. 1. A 44-year-old male presented with left leg pain and voiding difficulty. A. Sagittal T1-weighted MR image shows thecal sac severely compressed by posterior epidural hypointensity mass lesion at the L4-5 level. B. Sagittal T2-weighted MR image shows heterogeneous slightly hyperintensity mass on same level of Fig. A. C, D. Contrast enhanced T1-weighted sagittal (C) and axial (D) MR images show hypointenisty mass with peripheral rim enhancement at L4-5. E. Photomicrograph (H & E, 100) shows sequestered disc with myxoid/hyaline degeneration, neovascularization and hemorrhage.
Journal of the Korean Radiological Society, 1996
Purpose: To evaluate the usefulness of fast magnetic resonance (MR) sequences combined with MR ar... more Purpose: To evaluate the usefulness of fast magnetic resonance (MR) sequences combined with MR arterial portography in the preoperative assessment of hepatocellular carcinoma. Materials and Methods: Twelve patients suffering from nodular hepatocellular carcinoma complicated by liver cirrhos is underwent T2-weighted turbo spin echo and T1-weighted multisection FLASH with and without fat-suppression MR imaging during single breath-hold session in each sequence. MR arterial portography was performed with Gd-DTPA injected through a catheter into the superior mesenteric or splenic artery during the T1 -weighted FLASH sequence. The pathologic findings of surgical specimen or follow-up lipiodol CT findings were compared with the MR imaging. Results: MR arterial portography depicted 17 of the 19 masses (sensitivity , 89 %) and the sensitivity of non-contrast fast MR sequences was 74 % (14/19) . The sensitiv ity for combined interpretation of all the above sequences was 89 % (17/19 ). MR arterial portography showed perfusion defects from two cysts , one hemangioma , one inflammatory mass , and innumerable tiny regenerating nodules. Static T1 -and T2-weighted imaging clearly differentiated , however, benign lesions and true hepatocell 비 ar carclnoma. Conclusion: MR arterial portography combined with other fast MR imaging allows tissue characterization as well as high detection rate in the evaluation of hepatocellular carcinoma complicated with cirrhosis Index Words: Li ver neoplasms, MR Magnetic resonan ce (MR ), rapid imaging Portography Address reprint requests to :
Journal of the Korean Radiological Society, 1999
Journal of the Korean Radiological Society, 2008
Intraspinal synovial cysts are found within the lumbar spine and less commonly found in the cervi... more Intraspinal synovial cysts are found within the lumbar spine and less commonly found in the cervical spine (1). An occurrence of a cyst in the thoracic spine causing myelopathy is extremely rare (2) and to the best of our knowledge, 25 cases of thoracic synovial cyst have been reported in the English language clinical literature and of these cases, only seven cases have been reported where a synovial cyst was combined with myelopathy. These intraspinal extradural cysts arise from the facet capsules of degenerative facet joints and are designated as synovial (1, 2), juxtafacet (3), ganglion (4), or ligamentum flavum cysts (5). We report the radiological findings of a case of thoracic intraspinal synovial cyst that caused myelopathy at the T2-3 level.
PURPOSE To reveal the difference of clinical and radiological findings between the symptomatic an... more PURPOSE To reveal the difference of clinical and radiological findings between the symptomatic and non-symptomatic group and eventually to find factors correlated with symptoms METHOD AND MATERIALS During the 20-months period, we reviewed 8100 cases of lumbar CT scans and found 92 intraspinal gases (ISG) from 80 patients without history of recent surgical or interventional procedures in the spine. They were divided into symptomatic and non-symptomatic groups with the clinical data. The lesions were morphologically classified as type I (intradiscal gas), type II (juxtadiscal gas), and type III (pure gas without visible herniated disc component) by the radiological review. According to the axial location of the lesion, these lesions were classified as the lateral (foraminal and extraforaminal) type and central type (central, paracentral, and lateral recess). Using the data about the sex, age, level, the maximum cross-sectional area of the ISG, disc height, sagittal rotation angle, pre...
Yonsei medical journal, 2000
Contrast enhancement during the dynamic MR imaging is important for the detection and characteriz... more Contrast enhancement during the dynamic MR imaging is important for the detection and characterization of focal liver lesions. The purpose of this study was to determine whether or not a timing examination with a injection of a 1.0-mL bolus of gadopentetate dimeglumine into the antecubital vein followed by rapid dynamic scanning and measurement of signal intensity of the aorta could help to obtain proper arterial-dominant phase images for the characterization of focal hepatic lesions during subsequent multiphase dynamic MR imaging. The imaging delay to acquisition of the first gadolinium-enhanced image for multiphase dynamic MR imaging was set to equal the time to peak aortic enhancement during the test examination. The first contrast-enhanced images of 80 patients with 160 focal liver lesions (hepatocellular carcinoma, n = 79; cavernous hemangioma, n = 51; metastatic tumor, n = 30) were then retrospectively reviewed. Peak aortic enhancement occurred between 10 and 28 seconds (mean,...
Yonsei medical journal, 1999
The aim of this study was to determine the usefulness of quantitative analysis of multiphasic dyn... more The aim of this study was to determine the usefulness of quantitative analysis of multiphasic dynamic contrast-enhanced magnetic resonance (MR) imaging in differentiating early homogeneously enhancing hemangiomas from hepatocellular carcinomas (HCCs). Four-phased dynamic MR imaging at 10 sec (first phase of dynamic contrast-enhanced imaging, P1), 35 sec (second phase, P2), 60 sec (third phase, P3) and 300 sec (delay phase, P4) immediately after intravenous administration of 0.1 mmol/kg Gadolinium-DTPA was obtained with 1.5-T unit with breath-hold multisection FLASH (fast low angle-shot) sequence (TR/TE, 113-130 msec/4.1 msec; flip angle, 80 degrees). Thirty-three HCCs and 18 hemangiomas, homogeneously enhanced on P1, were included in the study. The images were evaluated quantitatively (SNR, signal-to-noise ratio; and CNR, contrast- to- noise ratio of lesions). Quantitatively, mean CNR was higher for hemangiomas than for HCCs on all phases, and the difference in CNRs between hemangio...
Yonsei Medical Journal, 1999
Yonsei Medical Journal, 2006
Yonsei Medical Journal, 2005
Journal of Neurosurgery: Spine, 2000
✓ The authors describe a rare case of an intradural cervical disc herniation in a 40-year-old man... more ✓ The authors describe a rare case of an intradural cervical disc herniation in a 40-year-old man presenting with Brown—Séquard's syndrome. Magnetic resonance imaging revealed the pathological entity at the C5–6 disc space, which showed suspicious signs of intradural extension of the disc herniation. After the patient underwent microsurgical removal of the herniated disc via an anterior approach, he experienced a complete remission of symptoms. The existing pertinent literature is reviewed, and diagnostic and therapeutic implications are discussed.