1.A Case of Impending Rupture of an Infected Thoracoabdominal Aortic Aneurysm.
Tamotsu Yasuda ; Sinichiro Yamamoto ; Yoshinori Ishida
Japanese Journal of Cardiovascular Surgery 1999;28(6):406-409
A 50-year-old woman who had received hemodialysis for 8 years was admitted due to lumbago, fever and leukocytosis. Computed tomography and angiography revealed a supraceliac saccular aneurysm and right pleural effusion. Impending rupture of an infected supraceliac aneurysm was strongly suspected, and an emergency operation was performed. The aneurysm was almost completely resected and replaced by a 24mm Hemashield graft with reconstruction of visceral and intercostal arteries using partial bypass and deep hypothermia. Staphylococcus aureus infection was diagnosed based on the culture of the aneurysmal wall. The postoperative course was uneventful without any adverse neurological symptoms. After surgery, antibiotics were administered for 4 weeks intravenously. The patient is well 22 months after the operation.
2.Improved visibility of palisade vessels within Barrett’s esophagus using red dichromatic imaging: a retrospective cross-sectional study in Japan
Chise UEDA ; Shinwa TANAKA ; Tetsuya YOSHIZAKI ; Hirofumi ABE ; Masato KINOSHITA ; Hiroya SAKAGUCHI ; Hiroshi TAKAYAMA ; Hitomi HORI ; Ryosuke ISHIDA ; Shinya HOUKI ; Hiroshi TANABE ; Eri NISHIKAWA ; Madoka TAKAO ; Toshitatsu TAKAO ; Yoshinori MORITA ; Takashi TOYONAGA ; Yuzo KODAMA
Clinical Endoscopy 2025;58(2):269-277
Background/Aims:
Visualization of palisade vessels (PVs) in Barrett’s esophagus is crucial for proper assessment. This study aimed to determine whether red dichromatic imaging (RDI) improves PV visibility compared with white-light imaging (WLI) and narrow-band imaging (NBI).
Methods:
Five expert and trainee endoscopists evaluated the PV visibility in Barrett’s esophagus using WLI, NBI, and RDI on 66 images from 22 patients. Visibility was rated on a 4-point scale: 4, excellent; 3, good; 2, fair; and 1, poor. The color difference between the most recognizable PV spots and surrounding areas with undetectable blood vessels was also analyzed.
Results:
Mean visibility scores were 2.6±0.7, 2.3±0.6, and 3.4±0.4 for WLI, NBI, and RDI, respectively. The RDI scores were significantly higher than the WLI (p<0.001) and NBI (p<0.001) scores. These differences were recognized by trainees and expert endoscopists. Color differences in PVs were 7.74±4.96 (WLI), 10.43±5.09 (NBI), and 15.1±6.54 (RDI). The difference in RDI was significantly higher than that in WLI (p<0.001) and NBI (p=0.006).
Conclusions
RDI significantly improved PV visibility compared to WLI and NBI based on objective and subjective measures.
3.Improved visibility of palisade vessels within Barrett’s esophagus using red dichromatic imaging: a retrospective cross-sectional study in Japan
Chise UEDA ; Shinwa TANAKA ; Tetsuya YOSHIZAKI ; Hirofumi ABE ; Masato KINOSHITA ; Hiroya SAKAGUCHI ; Hiroshi TAKAYAMA ; Hitomi HORI ; Ryosuke ISHIDA ; Shinya HOUKI ; Hiroshi TANABE ; Eri NISHIKAWA ; Madoka TAKAO ; Toshitatsu TAKAO ; Yoshinori MORITA ; Takashi TOYONAGA ; Yuzo KODAMA
Clinical Endoscopy 2025;58(2):269-277
Background/Aims:
Visualization of palisade vessels (PVs) in Barrett’s esophagus is crucial for proper assessment. This study aimed to determine whether red dichromatic imaging (RDI) improves PV visibility compared with white-light imaging (WLI) and narrow-band imaging (NBI).
Methods:
Five expert and trainee endoscopists evaluated the PV visibility in Barrett’s esophagus using WLI, NBI, and RDI on 66 images from 22 patients. Visibility was rated on a 4-point scale: 4, excellent; 3, good; 2, fair; and 1, poor. The color difference between the most recognizable PV spots and surrounding areas with undetectable blood vessels was also analyzed.
Results:
Mean visibility scores were 2.6±0.7, 2.3±0.6, and 3.4±0.4 for WLI, NBI, and RDI, respectively. The RDI scores were significantly higher than the WLI (p<0.001) and NBI (p<0.001) scores. These differences were recognized by trainees and expert endoscopists. Color differences in PVs were 7.74±4.96 (WLI), 10.43±5.09 (NBI), and 15.1±6.54 (RDI). The difference in RDI was significantly higher than that in WLI (p<0.001) and NBI (p=0.006).
Conclusions
RDI significantly improved PV visibility compared to WLI and NBI based on objective and subjective measures.
4.Improved visibility of palisade vessels within Barrett’s esophagus using red dichromatic imaging: a retrospective cross-sectional study in Japan
Chise UEDA ; Shinwa TANAKA ; Tetsuya YOSHIZAKI ; Hirofumi ABE ; Masato KINOSHITA ; Hiroya SAKAGUCHI ; Hiroshi TAKAYAMA ; Hitomi HORI ; Ryosuke ISHIDA ; Shinya HOUKI ; Hiroshi TANABE ; Eri NISHIKAWA ; Madoka TAKAO ; Toshitatsu TAKAO ; Yoshinori MORITA ; Takashi TOYONAGA ; Yuzo KODAMA
Clinical Endoscopy 2025;58(2):269-277
Background/Aims:
Visualization of palisade vessels (PVs) in Barrett’s esophagus is crucial for proper assessment. This study aimed to determine whether red dichromatic imaging (RDI) improves PV visibility compared with white-light imaging (WLI) and narrow-band imaging (NBI).
Methods:
Five expert and trainee endoscopists evaluated the PV visibility in Barrett’s esophagus using WLI, NBI, and RDI on 66 images from 22 patients. Visibility was rated on a 4-point scale: 4, excellent; 3, good; 2, fair; and 1, poor. The color difference between the most recognizable PV spots and surrounding areas with undetectable blood vessels was also analyzed.
Results:
Mean visibility scores were 2.6±0.7, 2.3±0.6, and 3.4±0.4 for WLI, NBI, and RDI, respectively. The RDI scores were significantly higher than the WLI (p<0.001) and NBI (p<0.001) scores. These differences were recognized by trainees and expert endoscopists. Color differences in PVs were 7.74±4.96 (WLI), 10.43±5.09 (NBI), and 15.1±6.54 (RDI). The difference in RDI was significantly higher than that in WLI (p<0.001) and NBI (p=0.006).
Conclusions
RDI significantly improved PV visibility compared to WLI and NBI based on objective and subjective measures.