Cage structure helps to improve the photoisomerization efficiency of azobenzene

Article abstract of DOI:10.1016/j.tetlet.2020.152626

Azobenzene (Azo) usually cannot achieve relatively high photoisomerization efficiency because of the overlap of the n-π* absorption bands between their isomers. In this work, three Azo units were integrated into a cage (AC) and adopt a nonplanar configura

Full text of DOI:10.1016/j.tetlet.2020.152626

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JACC March 21, 2017
Volume 69, Issue 11
FIT Clinical Decision Making
INTRAMURAL HEMATOMA OR AORTITIS: A DIAGNOSTIC DILEMMA
Poster Contributions
Poster Hall, Hall C
Sunday, March 19, 2017, 9:45 a.m.-10:30 a.m.
Session Title: FIT Clinical Decision‐Making: Interventional Cardiology, Acute and Stable Ischemic Heart Disease, and Vascular Medicine
Abstract Category: Vascular Medicine
Presentation Number: 1300-393
Authors: Karman Tandon, Catherine Otto, University of Washington, Seattle, WA, USA
Background: Intramural hematoma (IMH) and aortitis are easily confused on imaging but exhibit very different pathophysiology, treatment
and prognosis.
Case: A 54yo Mexican male with no PMH had CXR to followup pneumonia, showing abnormal aortic contours. CT Chest (pictured) showed
aortic wall thickening up to 2cm in the ascending aorta, arch, and proximal descending aorta, involving RCA and LCx, read as type A
intramural hematoma. The patient was emergently called in for operative aortic grafting 12h after CT.
Decision‐Making: The patient arrived asymptomatic, prompting serial CTs for progression. Negative D-Dimer and CT findings of patchy
involvement of abdominal aorta, lymphadenopathy, increasing density in venous phase, no hyperdensity of noncontrast phase, suggest
aortitis rather than IMH. Exhaustive workup of rheumatologic and infectious aortitis yielded only positive interferon-gamma release assay
for latent or active TB. ESR and CRP slightly elevated. EBUS FNA of lymph node was unremarkable. MRI spin-echo “Black Blood” was
obtained to definitively rule out IMH, showing clear aortitis and periaortitis. The patient was empirically treated for active TB with plan for
followup imaging in November.
Conclusions: This case highlights the pathophysiology and workup of IMH and aortitis, and features on imaging, labwork, and history
that distinguish them. Imaging and history in classic IMH, Takayasu and giant cell arteritis, bacterial, and tuberculous aortitis cases are
presented.