Relationship between CT findings of pulmonary tuberculosis and the number of acid-fast bacilli on sputum smears

Clinical Imaging
Shin MatsuokaFumio Yamagishi


To investigate the relationship between computed tomography (CT) findings in patients with active pulmonary tuberculosis (PTB) and the number of acid-fast bacilli (AFB) on sputum smears. We reviewed CT scans of 173 patients with active PTB. The patients were divided into groups according to the number of AFB on sputum smears as follows: A, negative (n = 40); B, doubtful (n = 21); C, + (n = 34); and D, ++ or greater (n = 78). The presence or absence and the number of lobes that included micronodules, nodules, consolidation and cavitation, the number of cavities and the maximum diameter of the cavity lumen were noted. The frequency of micronodules and nodules did not significantly differ among the four groups. In contrast, the frequency of consolidation and cavitation increased with the number of AFB (P < .0001). Differences in the number of lobes involving micronodules, nodules, consolidation and cavitation were significant between Group D and the other groups (P < .0001), but not between Groups A or B and C. The number and maximum size of cavities significantly differed between Group D and the other groups (P < .0001). CT findings correlated with the number of AFB in sputum smears to some extent. However, CT findings do not rel...Continue Reading


Oct 1, 1995·Seminars in Ultrasound, CT, and MR·J G ImM C Han
Oct 6, 1997·Clinical Infectious Diseases : an Official Publication of the Infectious Diseases Society of America·E E TelzakS Blum

❮ Previous
Next ❯


Oct 12, 2007·Journal of Clinical Microbiology·Moises PalaciKathleen D Eisenach
Jun 23, 2009·American Journal of Respiratory and Critical Care Medicine·John L JohnsonW Henry Boom
Jun 26, 2012·BMC Infectious Diseases·Jung Ar ShinMin Kwang Byun
Apr 15, 2014·Clinical Infectious Diseases : an Official Publication of the Infectious Diseases Society of America·Matthew K O'SheaMartin Dedicoat
Jul 26, 2011·Japanese Journal of Radiology·Kunihiro YagihashiYasuo Nakajima
Aug 12, 2015·European Journal of Radiology·Jeong Min KoSun Wha Song
Mar 20, 2015·Transactions of the Royal Society of Tropical Medicine and Hygiene·Teye A UmanahPeter S Nyasulu
Mar 31, 2009·International Journal of Infectious Diseases : IJID : Official Publication of the International Society for Infectious Diseases·Eun Young HeoJae-Joon Yim
May 31, 2014·Revue de pneumologie clinique·S Hantous-ZannadK Ben Miled-M'rad
Dec 30, 2014·AJR. American Journal of Roentgenology·Jeong Min KoChi Hong Kim
Oct 13, 2016·Emerging Microbes & Infections·Liqun ZhangYanlin Zhao
Nov 23, 2013·Tuberculosis and Respiratory Diseases·Jaehee LeeChang Ho Kim
Jul 21, 2016·Journal of Computer Assisted Tomography·Kyung Nyeo JeonHo Cheol Kim
Nov 8, 2005·Journal of Computer Assisted Tomography·Nobuyuki KosakaHarumi Itoh
May 16, 2019·La Radiologia medica·Edoardo CarlesiStefano Colagrande
Mar 19, 2021·Journal of Cardiothoracic Surgery·Yong YangLiang Duan

❮ Previous
Next ❯

Related Concepts

Trending Feeds


Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Hereditary Sensory Autonomic Neuropathy

Hereditary Sensory Autonomic Neuropathies are a group of inherited neurodegenerative disorders characterized clinically by loss of sensation and autonomic dysfunction. Here is the latest research on these neuropathies.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Landau-Kleffner Syndrome

Landau Kleffner syndrome (LKS), also called infantile acquired aphasia, acquired epileptic aphasia, or aphasia with convulsive disorder, is a rare childhood neurological syndrome characterized by the sudden or gradual development of aphasia (the inability to understand or express language) and an abnormal electroencephalogram. Discover the latest research on LKS here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.


Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

Regulation of Vocal-Motor Plasticity

Dopaminergic projections to the basal ganglia and nucleus accumbens shape the learning and plasticity of motivated behaviors across species including the regulation of vocal-motor plasticity and performance in songbirds. Discover the latest research on the regulation of vocal-motor plasticity here.