OBJECTIVE: The aim of this study was to compare titanium and cobalt alloy clip induced artifacts in 16- and 64-row multislice computed tomography angiograms. METHODS: A total of 40 intracranial aneurysms in 37 patients treated using titanium or cobalt-alloy clips were enrolled in this study. Computed tomography angiography (CTA) was performed using a 16-row (12 aneurysms; cobalt-alloy clips in 8 and titanium clips in 4) or 64-row (28 aneurysms; cobalt-alloy clips in 14 and titanium clips in 14) multislice CT machine after surgical clipping. Clip-induced artifacts were divided into white and black components, and artifact sizes were quantified by measuring the areas of these components. RESULTS: The titanium clips (634.9 +/- 308.44 mm2) produced smaller artifacts than cobalt alloy clips (2,797.4 +/- 3,121.98 mm2) by CTA (p=0.006), but the mean size of titanium clip induced artifacts was smaller for 64-row (544.0 +/- 68.77 mm2) than for 16-row (953.3 +/- 279.95 mm2) multislice CTA (p=0.026). On the other hand, cobalt alloy clip related artifacts were similarly sized (64-row, 2,191.5 +/- 2,072.86 mm2 versus 16-row, 3,857.6 +/- 4,386.56 mm2, p=0.246). CONCLUSION: Titanium clips produce smaller artifacts than cobalt-alloy clips and 64-row multislice CTA reduced titanium clip-induced artifacts as compared with 16-row multislice CTA. However, cobalt-alloy clip artifacts were huge and were not reduced by the higher row CTA unit.
Alloys ; Aneurysm ; Angiography ; Artifacts ; Cobalt ; Hand ; Humans ; Intracranial Aneurysm ; Multidetector Computed Tomography ; Surgical Instruments ; Titanium

OBJECTIVE: The aim of this study was to compare titanium and cobalt alloy clip induced artifacts in 16- and 64-row multislice computed tomography angiograms. METHODS: A total of 40 intracranial aneurysms in 37 patients treated using titanium or cobalt-alloy clips were enrolled in this study. Computed tomography angiography (CTA) was performed using a 16-row (12 aneurysms; cobalt-alloy clips in 8 and titanium clips in 4) or 64-row (28 aneurysms; cobalt-alloy clips in 14 and titanium clips in 14) multislice CT machine after surgical clipping. Clip-induced artifacts were divided into white and black components, and artifact sizes were quantified by measuring the areas of these components. RESULTS: The titanium clips (634.9 +/- 308.44 mm2) produced smaller artifacts than cobalt alloy clips (2,797.4 +/- 3,121.98 mm2) by CTA (p=0.006), but the mean size of titanium clip induced artifacts was smaller for 64-row (544.0 +/- 68.77 mm2) than for 16-row (953.3 +/- 279.95 mm2) multislice CTA (p=0.026). On the other hand, cobalt alloy clip related artifacts were similarly sized (64-row, 2,191.5 +/- 2,072.86 mm2 versus 16-row, 3,857.6 +/- 4,386.56 mm2, p=0.246). CONCLUSION: Titanium clips produce smaller artifacts than cobalt-alloy clips and 64-row multislice CTA reduced titanium clip-induced artifacts as compared with 16-row multislice CTA. However, cobalt-alloy clip artifacts were huge and were not reduced by the higher row CTA unit.
Alloys ; Aneurysm ; Angiography ; Artifacts ; Cobalt ; Hand ; Humans ; Intracranial Aneurysm ; Multidetector Computed Tomography ; Surgical Instruments ; Titanium

No abstract available.
Magnetic Resonance Imaging* ; Subacute Combined Degeneration*

Mitochondrial encephalopathy, lactic acidosis, and stroke-like episodes (MELAS) is one of the mitochondrial disorders that can present as a stroke-like episode or seizure. Although the pathophysiology of MELAS remains inconclusive, the main possibilities are thus far thought to be mitochondrial cytopathy and angiopathy. This case report describes a 61-year-old woman diagnosed with MELAS who presented simultaneously with vascular hyperemia and crossed cerebellar diaschisis.
Acidosis, Lactic ; Female ; Humans ; Hyperemia ; Kearns-Sayre Syndrome ; Mitochondrial Diseases ; Mitochondrial Encephalomyopathies ; Mitochondrial Myopathies ; Seizures

Mitochondrial encephalopathy, lactic acidosis, and stroke-like episodes (MELAS) is one of the mitochondrial disorders that can present as a stroke-like episode or seizure. Although the pathophysiology of MELAS remains inconclusive, the main possibilities are thus far thought to be mitochondrial cytopathy and angiopathy. This case report describes a 61-year-old woman diagnosed with MELAS who presented simultaneously with vascular hyperemia and crossed cerebellar diaschisis.
Acidosis, Lactic ; Female ; Humans ; Hyperemia ; Kearns-Sayre Syndrome ; Mitochondrial Diseases ; Mitochondrial Encephalomyopathies ; Mitochondrial Myopathies ; Seizures

Aged people are challenged by serious complications from chronic diseases, such as mood disorder, diabetes, heart disease, and infectious diseases, which are also the most common causes of death in older people. Therefore, elderly care facilities are more important than ever. The most common causes of death in elderly care facilities were reported to be diabetes, cardiovascular disease, and pneumonia. Recently, the coronavirus disease 2019 (COVID-19) pandemic have a great impact on blind spots of safety where aged people were isolated from society. Elderly care facilities were one of the blind spots in the midst of the pandemic, where major casualties were reported from COVID-19 complications because most people had one or two mortality risk factors, such as diabetes or cardiovascular disease. Therefore, medical governance of public health center and hospital, and elderly care facility is becoming important issue of priority. Thus, remote health monitoring service by the Internet of Medical Things (IoMT) sensors is more important than ever. Recently, technological breakthroughs have enabled healthcare professionals to have easy access to patients in medical blind spots through the use of IoT sensors. These sensors can detect medically urgent situations in a timely fashion and make medical decisions for aged people in elderly care facilities. Real-time electrocardiograms and blood sugar monitoring sensors are approved by the medical insurance service. Real-time monitoring services in medical blind spots, such as elderly care facilities, has been suggested. Heart rhythm monitoring could play a role in detecting early cardiovascular disease events and monitoring blood glucose levels in the management of chronic diseases, such as diabetes, in aged people in elderly care facilities. This review presents the potential usefulness of remote monitoring with IoMT sensors in medical blind spots and clinical suggestions for applications.